Original Article
Physical Activity Program Improves Functional Exercise Capacity and Flexibility in Extremely Preterm Children With Bronchopulmonary Dysplasia Aged 4–6 Years: A Randomized Controlled Trial
Mejora de la capacidad funcional al ejercicio y de la flexibilidad a través de un programa de actividad física en niños de entre 4 a 6 años prematuros extremos con displasia broncopulmonar: ensayo controlado aleatorizado
Natalia Morales Mestrea,b,
, Andrea Papaleoc,d, Vicente Morales Hidalgoe, Gilles Catyf, Gregory Reychlerb,f,g
Corresponding author
a Servei Fisioteràpia, Hospital de Nens de Barcelona, 08009 Barcelona, Spain
b Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL & Dermatologie, Université Catholique de Louvain, 1200 Bruxelles, Belgium
c Servei de Pneumologia Pediàtrica, Hospital de Nens de Barcelona, 08009 Barcelona, Spain
d Servei Pneumologia Pediàtrica, Hospital Vall d’Hebron, 08035 Barcelona, Spain
e Equip Pediatria Territorial Alt Penedès-Garraf, Institut Català de la Salut, Catalonia, Spain
f Service de Médecine Physique et Réadaptation, Cliniques universitaires Saint-Luc, 1200 Bruxelles, Belgium
g Service de Pneumologie, Cliniques universitaires Saint-Luc, 1200 Bruxelles, Belgium
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"Morales Mestre" "email" => array:1 [ 0 => "natalia.morales@uclouvain.be" ] "referencia" => array:3 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] 2 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "Andrea" "apellidos" => "Papaleo" "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "aff0015" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">d</span>" "identificador" => "aff0020" ] ] ] 2 => array:3 [ "nombre" => "Vicente" "apellidos" => "Morales Hidalgo" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">e</span>" "identificador" => "aff0025" ] ] ] 3 => array:3 [ "nombre" => "Gilles" "apellidos" => "Caty" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">f</span>" "identificador" => "aff0030" ] ] ] 4 => array:3 [ "nombre" => "Gregory" "apellidos" => "Reychler" "referencia" => array:3 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">f</span>" "identificador" => "aff0030" ] 2 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">g</span>" "identificador" => "aff0035" ] ] ] ] "afiliaciones" => array:7 [ 0 => array:3 [ "entidad" => "Servei Fisioteràpia, Hospital de Nens de Barcelona, 08009 Barcelona, Spain" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL & Dermatologie, Université Catholique de Louvain, 1200 Bruxelles, Belgium" "etiqueta" => "b" "identificador" => "aff0010" ] 2 => array:3 [ "entidad" => "Servei de Pneumologia Pediàtrica, Hospital de Nens de Barcelona, 08009 Barcelona, Spain" "etiqueta" => "c" "identificador" => "aff0015" ] 3 => array:3 [ "entidad" => "Servei Pneumologia Pediàtrica, Hospital Vall d’Hebron, 08035 Barcelona, Spain" "etiqueta" => "d" "identificador" => "aff0020" ] 4 => array:3 [ "entidad" => "Equip Pediatria Territorial Alt Penedès-Garraf, Institut Català de la Salut, Catalonia, Spain" "etiqueta" => "e" "identificador" => "aff0025" ] 5 => array:3 [ "entidad" => "Service de Médecine Physique et Réadaptation, Cliniques universitaires Saint-Luc, 1200 Bruxelles, Belgium" "etiqueta" => "f" "identificador" => "aff0030" ] 6 => array:3 [ "entidad" => "Service de Pneumologie, Cliniques universitaires Saint-Luc, 1200 Bruxelles, Belgium" "etiqueta" => "g" "identificador" => "aff0035" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Mejora de la capacidad funcional al ejercicio y de la flexibilidad a través de un programa de actividad física en niños de entre 4 a 6 años prematuros extremos con displasia broncopulmonar: ensayo controlado aleatorizado" ] ] "resumenGrafico" => array:2 [ "original" => 1 "multimedia" => array:5 [ "identificador" => "fig0010" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => false "mostrarDisplay" => true "figura" => array:1 [ 0 => array:4 [ "imagen" => "fx1.jpeg" "Alto" => 971 "Ancho" => 1333 "Tamanyo" => 65634 ] ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Bronchopulmonary dysplasia (BPD) is the most frequent severe respiratory disorder during the neonatal period among premature children.<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">1</span></a> In Europe, the incidence is approximately 20% among new born with low birth weight (BW) (<2500<span class="elsevierStyleHsp" style=""></span>g) and 30% in extremely preterm (<28 week).<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">2</span></a> BPD incidence is related to gestational age (GA) and low BW. Indeed, in Spain, it affects 53% of children who were born before 28 weeks of GA compared to only 0.3% of children with a GA greater than 30 weeks, and 67% of children with a BW lower than 800<span class="elsevierStyleHsp" style=""></span>g compared to 1% of children with a BW around 1250–1500<span class="elsevierStyleHsp" style=""></span>g.<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">3</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Extremely preterm infants and, particularly those with BPD, have frequently impaired lung function in infancy, childhood and adulthood. It increases the risk of respiratory disease. Reduced functional capacity was also demonstrated in BPD preterm children and adolescents compared to children born full-term.<a class="elsevierStyleCrossRefs" href="#bib0260"><span class="elsevierStyleSup">1,4–6</span></a> These children have an important risk of limited ventilatory reserve and/or a need for adaptation during exercise, both resulting in limitations in daily life.<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">7</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">Exercises programme are highly recommended in many lung diseases.<a class="elsevierStyleCrossRefs" href="#bib0295"><span class="elsevierStyleSup">8,9</span></a> Indeed, in chronic obstructive pulmonary disease (COPD), pulmonary rehabilitation including a physical exercise program is highly effective (Evidence 1A)<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">8</span></a>. In paediatric chronic diseases such as congenital heart diseases or cystic fibrosis, exercise training was also recommended as an important part of the treatment.<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">8</span></a> However, the effects of such programme have never been documented in BPD preterm children, despite similar physical limitations. We hypothesized that BPD preterm children would benefit from a physical activity programme.</p><p id="par0020" class="elsevierStylePara elsevierViewall">The aim of this study was to evaluate the effects of a physical activity programme on functional capacity (exercise tolerance and exercise capacity) (main outcome), flexibility and lung function in BPD extremely preterm children.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Material and Methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Patients</span><p id="par0025" class="elsevierStylePara elsevierViewall">BPD preterm children were recruited from database of the paediatric pulmonology unit of Hospital Vall d’Hebron in Barcelona (Spain) between August and November 2015. Inclusion criteria were to be aged between 4 and 6 years with a gestational age lower than 37 weeks, moderate BPD according to National Institute of Child Health and Human Development (NICHD) (<30% oxygen at 36 weeks, at postmenstrual age or at discharge)<a class="elsevierStyleCrossRef" href="#bib0305"><span class="elsevierStyleSup">10</span></a> and free of participation in sports or another exercise programme at school or in a specific club. Children with congenital malformations, neuromuscular disorders, gait dysfunction, severe visual or hearing impairment, difficulties in communication or in understanding orders, wheezing or acute pulmonary disease in the 4 weeks preceding the study, haemodynamic changes at rest defined by heart rate higher than 130<span class="elsevierStyleHsp" style=""></span>bpm, systolic blood pressure higher than 130<span class="elsevierStyleHsp" style=""></span>mmHg or diastolic blood pressure higher than 80<span class="elsevierStyleHsp" style=""></span>mmHg and lung and/or heart transplantation were excluded.</p><p id="par0030" class="elsevierStylePara elsevierViewall">The study was previously approved by the institutional medical ethics committee (PIC-140-15) and was registered in ClinicalTrial.gov (<a id="intr0005" class="elsevierStyleInterRef" href="https://clinicaltrials.gov/NCT02523521">NCT02523521</a>). All parents signed a written informed consent.</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Design and Programme</span><p id="par0035" class="elsevierStylePara elsevierViewall">This was a randomized controlled trial. Allocation was concealed. Subjects were randomized in intervention (IG) or control group (CG). Randomization was performed by a computer-generated a random number list (<a id="intr0010" class="elsevierStyleInterRef" href="http://www.randomizer.org/">http://www.randomizer.org/</a>).</p><p id="par0040" class="elsevierStylePara elsevierViewall">IG performed a twice-a-week specific and supervised outpatient group exercise programme at the hospital during 4 weeks. Each session was divided in 3 blocks: (1) interval training (duration from 30 to 40<span class="elsevierStyleHsp" style=""></span>min) by running exercises, (2) peripheral muscle strength exercises (biceps, triceps, deltoids, hamstrings, quadriceps and triceps surae) with medicine ball from 0.5<span class="elsevierStyleHsp" style=""></span>kg to 2<span class="elsevierStyleHsp" style=""></span>kg (during 5–10<span class="elsevierStyleHsp" style=""></span>min) and (3) peripheral muscles stretching (hamstrings, quadriceps, triceps surae, deltoids, biceps, pectoral and dorsal) and chest flexibility (side inclinations) (during 5–10<span class="elsevierStyleHsp" style=""></span>min). The intensity of the interval training was determined by modified Borg scale (from 5 to 8 for moderate to vigorous intensity).<a class="elsevierStyleCrossRef" href="#bib0310"><span class="elsevierStyleSup">11</span></a> The duration of the sessions increased every week from 30 to 50<span class="elsevierStyleHsp" style=""></span>min. CG was evaluated but they did not participate to any specific physical activity during the study period.</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Evaluation and Outcomes</span><p id="par0045" class="elsevierStylePara elsevierViewall">The same qualified investigator (NM) performed all the evaluations and sessions and was blinded to the allocated treatment at the time of the initial evaluation. Lung function test was performed by a blinded pulmonologist. All the subjects were evaluated before and after the period of the study. The analysis was blinded.</p><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Functional Exercise Capacity</span><p id="par0050" class="elsevierStylePara elsevierViewall">Based on the recent American Thoracic Society (ATS)/European Respiratory Society (ERS) statement,<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">12</span></a> functional exercise capacity (exercise tolerance and exercise capacity) was considered as the main outcome and assessed by two different tests: six minute walking test (6MWT) and incremental shuttle walk test (ISWT).</p><p id="par0055" class="elsevierStylePara elsevierViewall">Exercise tolerance was evaluated by the 6MWT, according to the standardized protocol validated by Li et al. in children<a class="elsevierStyleCrossRef" href="#bib0320"><span class="elsevierStyleSup">13</span></a> and derived from ATS/ERS.<a class="elsevierStyleCrossRef" href="#bib0325"><span class="elsevierStyleSup">14</span></a> No training test was carried out due to the high reproducibility of this test in children and the absence of learning effect.<a class="elsevierStyleCrossRefs" href="#bib0320"><span class="elsevierStyleSup">13,15</span></a> Children took a 10-min rest on a chair before the test. They were instructed to walk as far as possible for 6<span class="elsevierStyleHsp" style=""></span>min. The test was self-paced and the child was allowed to rest if desired, although the clock continued to run. The encouragement during the test was standardized (“keep going”, “you are doing fine”, “everything is going well”) and given by the same person at fixed times.<a class="elsevierStyleCrossRef" href="#bib0320"><span class="elsevierStyleSup">13</span></a> Walked distance was expressed as absolute and percentage of predicted value based on Geiger's equation (6MWD (m)<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>196.72<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>39.816<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>age (years)<span class="elsevierStyleHsp" style=""></span>−<span class="elsevierStyleHsp" style=""></span>1.36<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>age<span class="elsevierStyleSup">2</span> (years)<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>138.28<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>height (m)).<a class="elsevierStyleCrossRef" href="#bib0335"><span class="elsevierStyleSup">16</span></a></p><p id="par0060" class="elsevierStylePara elsevierViewall">Exercise capacity was measured by the ISWT, recently validated by Lanza et al. in children<a class="elsevierStyleCrossRef" href="#bib0340"><span class="elsevierStyleSup">17</span></a> and based on Singh's protocol.<a class="elsevierStyleCrossRef" href="#bib0345"><span class="elsevierStyleSup">18</span></a> No training test was performed due to it is high reproducibility.<a class="elsevierStyleCrossRef" href="#bib0340"><span class="elsevierStyleSup">17</span></a> The test was performed in a 10-m hallway with 2 cones at the endpoints. Children were asked to walk (or ran) around the course at an incrementing pace directed by an audio signal.<a class="elsevierStyleCrossRef" href="#bib0340"><span class="elsevierStyleSup">17</span></a> The initial walking speed was 0.5<span class="elsevierStyleHsp" style=""></span>m/s and increased by 0.17<span class="elsevierStyleHsp" style=""></span>m/s each minute. The speed increment was indicated by a triple bleep. The test was composed of 15 levels. Walked distance was calculated and expressed as absolute and percent of predicted value following Lanza's equation (ISWT (m)<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>845.559<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>(sex<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>193.265)<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>(age<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>47.850) (body mass index<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>26.179)).<a class="elsevierStyleCrossRef" href="#bib0340"><span class="elsevierStyleSup">17</span></a> (Sex: 0 for female, 1 for male).</p><p id="par0065" class="elsevierStylePara elsevierViewall">The child took a rest for 20<span class="elsevierStyleHsp" style=""></span>min between 6MWT and ISWT. Pulsed oxygen saturation and heart rate were recorded before, after and 2<span class="elsevierStyleHsp" style=""></span>min after each test (Nonin, Onyx, USA). The test was interrupted on request by the child due to exhaustion or in case of oxygen saturation lower than 80% or heart rate higher than 85% of the maximum heart rate for age [predicted maximum HR<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>210<span class="elsevierStyleHsp" style=""></span>−<span class="elsevierStyleHsp" style=""></span>(0.65<span class="elsevierStyleHsp" style=""></span>×<span class="elsevierStyleHsp" style=""></span>age)].<a class="elsevierStyleCrossRef" href="#bib0350"><span class="elsevierStyleSup">19</span></a></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Flexibility</span><p id="par0070" class="elsevierStylePara elsevierViewall">Flexibility was assessed by the Modified Sit and Reach test (MSRT). Children were seated on the floor with both legs fully extended, shoulder width apart, and feet placed flat against a box with a slide ruler attached to the top. The height of the box was 33<span class="elsevierStyleHsp" style=""></span>cm. With one hand on top of the other and the knees fully extended, they slowly reached forward (without jerking) as far away as possible, sliding the hands across the top of the ruler, and held the final position at least 2<span class="elsevierStyleHsp" style=""></span>s. The score (in centimetres) was registered as the final position of the fingertips on or towards the ruler. MSRT score was calculated using the following equation: finger-to-box distance (cm)<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>(Sit and Reach Test (SRT) score<span class="elsevierStyleHsp" style=""></span>−<span class="elsevierStyleHsp" style=""></span>15<span class="elsevierStyleHsp" style=""></span>cm).<a class="elsevierStyleCrossRef" href="#bib0355"><span class="elsevierStyleSup">20</span></a> Higher scores indicated better performance. The reached distance of 15<span class="elsevierStyleHsp" style=""></span>cm corresponded with the position of the feet against the box. The score was negative if the participant was not able to touch the front of the box with his fingertips. The MSRT was performed twice and the average value was retained.<a class="elsevierStyleCrossRef" href="#bib0355"><span class="elsevierStyleSup">20</span></a> MSRT distance was calculated and expressed in absolute value.</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Lung Function</span><p id="par0075" class="elsevierStylePara elsevierViewall">Lung function test was performed according to ATS/ERS recommendations.<a class="elsevierStyleCrossRef" href="#bib0360"><span class="elsevierStyleSup">21</span></a> Forced expiratory volume in the first second (FEV<span class="elsevierStyleInf">1</span>), forced vital capacity (FVC), ratio of forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s to forced vital capacity (FEV<span class="elsevierStyleInf">1</span>/FVC) and forced expiratory flow (FEF<span class="elsevierStyleInf">25%–75%</span>) were evaluated. The results were expressed by Global Lung Initiative predicted value equation (GLI 2012).<a class="elsevierStyleCrossRef" href="#bib0365"><span class="elsevierStyleSup">22</span></a></p></span></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Statistical Analyses</span><p id="par0080" class="elsevierStylePara elsevierViewall">The sample size corresponding to a difference of 10% in the walking distance (main outcome), between the pre- and post-intervention at a 5% significance level for a 2-sided test with a power of 80% was determined (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>8 per group) based on Geiger et al. results.<a class="elsevierStyleCrossRef" href="#bib0335"><span class="elsevierStyleSup">16</span></a> Clinical data were analyzed by SPSS Statistics 24.0 (IBM Corp., Armonk, NY, USA). Descriptive results were expressed as mean<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>standard deviation (SD) and confidence interval, or by median and minimum–maximum depending on the normality of the distribution. Normality of the distributions was verified by Kolmogorov–Smirnov test. The means of pre- and post-intervention values were compared by Student <span class="elsevierStyleItalic">T</span> test. Paired or unpaired Student <span class="elsevierStyleItalic">T</span> test were used for intra- or intergroup comparisons, respectively. A <span class="elsevierStyleItalic">P</span> value less than .05 were considered statistically significant.</p></span></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Results</span><p id="par0085" class="elsevierStylePara elsevierViewall">Fifty-eight subjects (27 females, 31 males) were eligible. Twenty-six subjects fulfilled the inclusion criteria (gestational age<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>25.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.2 week, birth weight<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>747.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>131.5<span class="elsevierStyleHsp" style=""></span>g). Six children were excluded due to lack of interest (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>2), travel (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>2) and language difficulties (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>2). Twenty children were randomized (6 females, 4 males in IG; 4 females, 6 males in CG) and completed the study (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>). No adverse events were observed neither during the evaluations nor during the programme.</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0090" class="elsevierStylePara elsevierViewall">Characteristics of the subjects are presented in <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>. Lung function was assessed in 10 and only 6 children in CG and IG respectively, due to the impossibility to obtain valid manoeuvres. Both groups were similar at inclusion for all analyzed outcomes (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>><span class="elsevierStyleHsp" style=""></span>.05).</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0095" class="elsevierStylePara elsevierViewall">Effects of the intervention are illustrated in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>. After the 4-week programme, exercise tolerance (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.002), exercise capacity (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.013), flexibility (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.003) and airways obstruction (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.004) were significantly improved in the IG. No significant difference was observed for all outcomes between pre- and post-intervention in CG.</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><p id="par0100" class="elsevierStylePara elsevierViewall">Cardiorespiratory response (pulsed oxygen saturation (SpO<span class="elsevierStyleInf">2</span>) and heart rate (HR)) during 6MWT and ISWT are shown in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>. SpO<span class="elsevierStyleInf">2</span> did not show clinically relevant changes. HR at the end of ISWT was higher after the programme in IG (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.016).</p><p id="par0105" class="elsevierStylePara elsevierViewall">Lung function was similar at baseline in both groups. No changes in lung function were observed in CG. However, airways obstruction was significantly improved in IG (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.004).</p><p id="par0110" class="elsevierStylePara elsevierViewall">The improvement in 6MWT (gain in metres) (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.017), ISWT (gain in metres) (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.013) and MSRT (gain in centimetres) (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.002) were significantly higher in IG than in CG and clinically relevant only in IG at the end of the programme (<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>). It means that the improvement was higher than minimal clinically important difference (MCID) for these outcomes (15<span class="elsevierStyleHsp" style=""></span>m for 6MWT, 40<span class="elsevierStyleHsp" style=""></span>m for ISWT, 2.2<span class="elsevierStyleHsp" style=""></span>cm for MSRT).</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Discussion</span><p id="par0115" class="elsevierStylePara elsevierViewall">The aim of this study was to evaluate the effect of a physical activity programme on functional exercise capacity (exercise tolerance and exercise capacity) (main outcome), flexibility and lung function in BPD extremely premature children (from 4 to 6 years old). After a 4-week exercise programme, we highlighted a clinically relevant and statistically significant improvement in functional exercise capacity and flexibility. Airway obstruction level was also improved even if it was not clinically relevant.</p><p id="par0120" class="elsevierStylePara elsevierViewall">Functional exercise capacity was considered as the main outcome. The ATS/ERS propose assessing this endpoint by two different validated, inexpensive and safe tests (6MWT and ISWT).<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">12</span></a> 6MWT has been shown to reflect daily life activities limitation,<a class="elsevierStyleCrossRef" href="#bib0370"><span class="elsevierStyleSup">23</span></a> to measure the response to therapeutic interventions and to be strongly correlated to cardiopulmonary exercise test.<a class="elsevierStyleCrossRef" href="#bib0375"><span class="elsevierStyleSup">24</span></a> ISWT is incremental and progressive test, stressing the individual symptom limiting maximal performance.<a class="elsevierStyleCrossRef" href="#bib0345"><span class="elsevierStyleSup">18</span></a></p><p id="par0125" class="elsevierStylePara elsevierViewall">In adults, it is well know that a learning effect exists in field tests (6MWT and ISWT).<a class="elsevierStyleCrossRef" href="#bib0315"><span class="elsevierStyleSup">12</span></a> Then, to decrease this effect a training test has to be performed.<a class="elsevierStyleCrossRef" href="#bib0325"><span class="elsevierStyleSup">14</span></a> However, Martins et al. evaluated the repeatability of the 6MWT in children with 30<span class="elsevierStyleHsp" style=""></span>min between both tests and they observed no significant difference in the walked distance between both tests.<a class="elsevierStyleCrossRef" href="#bib0330"><span class="elsevierStyleSup">15</span></a> They suggested that there is no learning effect in children. Li demonstrated also a good reproducibility in children with no significant difference in the walked distance when 6MWT was repeated after 18 days.<a class="elsevierStyleCrossRef" href="#bib0320"><span class="elsevierStyleSup">13</span></a> This study concerned non-Caucasian children but we postulated that the learning effect (or reproducibility) on walking distance is not related to the ethnic origin. For these reasons, we did not perform a training test.</p><p id="par0130" class="elsevierStylePara elsevierViewall">Our programme improved functional exercise capacity in the recruited children. As previously demonstrated,<a class="elsevierStyleCrossRefs" href="#bib0260"><span class="elsevierStyleSup">1,4,5,25,26</span></a> BPD children showed lower functional exercise capacity compared to healthy children. Indeed, in our study, walked distance in 6MWT was only 61% and 64% of the predicted values at baseline in IG and CG, respectively.<a class="elsevierStyleCrossRef" href="#bib0335"><span class="elsevierStyleSup">16</span></a> Spanish children have one of the most sedentary behaviour in Europe<a class="elsevierStyleCrossRef" href="#bib0390"><span class="elsevierStyleSup">27</span></a> and it can contribute to the reduced walked distance. We hypothesize that such a programme could reduce the risk of sedentary and inactivity associated with being born extremely prematurely. After the exercise programme, the distance improved only in IG (+60<span class="elsevierStyleHsp" style=""></span>m). It reinforces this hypothesis. Despite MCID has never been determined for 6MWT in children, this improvement can be considered as clinically relevant. Indeed, it was largely higher than the error related to the repeatability (15<span class="elsevierStyleHsp" style=""></span>m) of this test in children.<a class="elsevierStyleCrossRef" href="#bib0320"><span class="elsevierStyleSup">13</span></a> The distance walked during ISWT was also dramatically lower in both groups than in healthy children (45% and 31% of predicted value in CG and IG respectively). IG improved significantly the walked distance (217<span class="elsevierStyleHsp" style=""></span>m) at the end of the programme. This improvement was clinically relevant.</p><p id="par0135" class="elsevierStylePara elsevierViewall">Flexibility is a health-related fitness quality included in several fitness batteries.<a class="elsevierStyleCrossRef" href="#bib0395"><span class="elsevierStyleSup">28</span></a> The most used evaluation tools are the SRT and the MSRT. SRT is validated for estimating hamstring extensibility in children.<a class="elsevierStyleCrossRef" href="#bib0400"><span class="elsevierStyleSup">29</span></a> However, MSRT protocol decreases the limb length bias establishing a relative zero point for each person. Even if Hoeger et al. demonstrated no significant differences between SRT and MSRT,<a class="elsevierStyleCrossRef" href="#bib0405"><span class="elsevierStyleSup">30</span></a> it can be particularly important in paediatric population to perform MSRT due to anthropometric characteristics of children. After our 4-week programme, we observed a significant improvement (+8.3<span class="elsevierStyleHsp" style=""></span>cm) in flexibility in IG (14.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>7.7 vs 22.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6.9; <span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.003). De Miguel-Etayo et al.<a class="elsevierStyleCrossRef" href="#bib0410"><span class="elsevierStyleSup">31</span></a> proposed European reference values of pre-pubertal children of fitness measures (6–11 years-old). Comparing their 6-years age group (19.8<span class="elsevierStyleHsp" style=""></span>cm in boys and 21.9<span class="elsevierStyleHsp" style=""></span>cm in girls) with our baseline values, we found a reduced flexibility among BPD children in CG (14.8<span class="elsevierStyleHsp" style=""></span>cm in boys and 12.0<span class="elsevierStyleHsp" style=""></span>cm in girls) and IG (12.1<span class="elsevierStyleHsp" style=""></span>cm in boys and 16.6<span class="elsevierStyleHsp" style=""></span>cm in girls). Mayorga-Vega et al.<a class="elsevierStyleCrossRef" href="#bib0415"><span class="elsevierStyleSup">32</span></a> considered 2.2<span class="elsevierStyleHsp" style=""></span>cm as a minimal detectable change value of the SRT. In our study, we found a greater improvement in IG (+6.1<span class="elsevierStyleHsp" style=""></span>cm). As previously demonstrated,<a class="elsevierStyleCrossRef" href="#bib0420"><span class="elsevierStyleSup">33</span></a> our results corroborated that extremely low birth weight (ELBW) BPD children have less flexibility compared to term-born children (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.002).</p><p id="par0140" class="elsevierStylePara elsevierViewall">Cardiorespiratory response during exercise are similar between preterm and full-term children<a class="elsevierStyleCrossRefs" href="#bib0280"><span class="elsevierStyleSup">5,34</span></a> and between preterm children with and without BPD.<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">4</span></a> As expected, in our study, this response at exercise (SpO<span class="elsevierStyleInf">2</span> and HR) was normal in all included children.</p><p id="par0145" class="elsevierStylePara elsevierViewall">In general, lung function tends to be reduced in BPD children. Contrary to previous publications,<a class="elsevierStyleCrossRefs" href="#bib0275"><span class="elsevierStyleSup">4,26,35</span></a> it was normal in both groups at inclusion. It can be explained by the impairment in lung function related to different BPD definitions,<a class="elsevierStyleCrossRef" href="#bib0435"><span class="elsevierStyleSup">36</span></a> the BPD severity<a class="elsevierStyleCrossRef" href="#bib0440"><span class="elsevierStyleSup">37</span></a> and the choice of Global Lung Function Initiative equation as reference values.<a class="elsevierStyleCrossRef" href="#bib0365"><span class="elsevierStyleSup">22</span></a> BPD children tend to present airway obstruction, especially in adolescence and adulthood<a class="elsevierStyleCrossRefs" href="#bib0300"><span class="elsevierStyleSup">9,35,38,39</span></a> and their lung function may deteriorate at a more rapid rate compared to healthy children.<a class="elsevierStyleCrossRef" href="#bib0435"><span class="elsevierStyleSup">36</span></a> For this reason, Rosenfeld<a class="elsevierStyleCrossRef" href="#bib0455"><span class="elsevierStyleSup">40</span></a> suggested that spirometry provides a useful longitudinal measurement in young children with BPD. Despite that, there is a paucity of data on preschool spirometry in children with BPD. Spirometric tests can be performed in children from 3 years.<a class="elsevierStyleCrossRef" href="#bib0365"><span class="elsevierStyleSup">22</span></a> Despite the difficulty to perform lung function test in preschool children (4–6 years old), only four children from our sample failed to perform successful spirometry manoeuvres in our study. A similar success rate was classically observed in children under 6 years old.<a class="elsevierStyleCrossRefs" href="#bib0460"><span class="elsevierStyleSup">41,42</span></a> Surprisingly to what it is classically expected after exercises programme, we observed a significant difference in FEV1 in IG (<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.004). However, this improvement is clinically non-relevant (lower than 8% predicted value or 150<span class="elsevierStyleHsp" style=""></span>mL).<a class="elsevierStyleCrossRef" href="#bib0470"><span class="elsevierStyleSup">43</span></a> It can be explained by the gain in peripheral and respiratory muscle strength associated to exercise training<a class="elsevierStyleCrossRef" href="#bib0475"><span class="elsevierStyleSup">44</span></a> even if we did not evaluate them. Indeed, a relationship between FEV1 and peripheral<a class="elsevierStyleCrossRef" href="#bib0480"><span class="elsevierStyleSup">45</span></a> and respiratory<a class="elsevierStyleCrossRef" href="#bib0485"><span class="elsevierStyleSup">46</span></a> muscles strength was previously found in cystic fibrosis children.</p><p id="par0150" class="elsevierStylePara elsevierViewall">To the best of our knowledge, no specific exercise programme has been proposed for BPD preterm children. This is the first study evaluating the effects of a short and supervised outpatient exercise programme in these patients. This programme included all the elements classically associated to exercise training programme in other diseases such as endurance (aerobic training), muscular strength training (resistance) and flexibility.<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">8</span></a> Each week the intensity of the exercises and duration of the sessions were increased. Programme duration, structure, sessions duration and frequency, and training intensity were extrapolated and adapted from pulmonary rehabilitation programme for COPD and Cystic Fibrosis (CF) patients.<a class="elsevierStyleCrossRefs" href="#bib0295"><span class="elsevierStyleSup">8,47,48</span></a> We performed 2 sessions per week and the duration of each session varied from 40 to 60<span class="elsevierStyleHsp" style=""></span>min based on ATS/ERS statement requiring a minimum of 30<span class="elsevierStyleHsp" style=""></span>min.<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">8</span></a> Our study confirmed the feasibility and the efficacy of such a programme in BPD children. Based on our results, we postulate that this programme is sufficient to obtain a benefit even though longer programme should be also considered in the future.</p><p id="par0155" class="elsevierStylePara elsevierViewall">Some limitations need to be addressed. Even if the sample size was previously determined, extrapolation to larger population should be verified. We investigated only ELBW children with moderate BPD and we cannot extrapolate our results to less premature children. Children with neurocognitive sequels were excluded while they are usually associated with more severe BPD.<a class="elsevierStyleCrossRef" href="#bib0500"><span class="elsevierStyleSup">49</span></a> However, it is the first time that a specific programme was proposed to BPD children. The duration of our programme was short. Indeed, the general recommendations consider that exercise programmes should be proposed during 6–12 week and 2–3 times per week.<a class="elsevierStyleCrossRefs" href="#bib0295"><span class="elsevierStyleSup">8,48</span></a> Nevertheless, similar 4-week programmes were already proposed with success in the literature.<a class="elsevierStyleCrossRefs" href="#bib0495"><span class="elsevierStyleSup">48,50,51</span></a></p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Conclusions</span><p id="par0160" class="elsevierStylePara elsevierViewall">We highlighted for the first time that a 4-week exercise programme was beneficial for BPD preterm children. This intervention at early age is feasible, leads to an improved exercise capacity. Indeed, our supervised programme improves exercise tolerance, exercise capacity and flexibility. As for all rehabilitation programmes, long-term benefit must be determined. Further studies will be necessary to evaluate the maintenance of the observed benefits and if children change their behaviour.</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Funding Statement</span><p id="par0165" class="elsevierStylePara elsevierViewall">This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0135">Authorship</span><p id="par0170" class="elsevierStylePara elsevierViewall">NM and GR conceptualized and designed the study, drafted the initial manuscript, and approved the final manuscript as submitted.</p><p id="par0175" class="elsevierStylePara elsevierViewall">AP, VM and GC carried out the initial analyses, reviewed and revised the manuscript, and approved the final manuscript as submitted.</p></span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0140">Conflict of Interests</span><p id="par0180" class="elsevierStylePara elsevierViewall">No conflicts of interest.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:14 [ 0 => array:3 [ "identificador" => "xres1122211" "titulo" => "Graphical abstract" "secciones" => array:1 [ 0 => array:1 [ "identificador" => "abst0005" ] ] ] 1 => array:3 [ "identificador" => "xres1122212" "titulo" => "Abstract" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0010" "titulo" => "Introduction" ] 1 => array:2 [ "identificador" => "abst0015" "titulo" => "Methods" ] 2 => array:2 [ "identificador" => "abst0020" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0025" "titulo" => "Conclusion" ] ] ] 2 => array:2 [ "identificador" => "xpalclavsec1057086" "titulo" => "Keywords" ] 3 => array:3 [ "identificador" => "xres1122213" "titulo" => "Resumen" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0030" "titulo" => "Introducción" ] 1 => array:2 [ "identificador" => "abst0035" "titulo" => "Métodos" ] 2 => array:2 [ "identificador" => "abst0040" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0045" "titulo" => "Conclusiones" ] ] ] 4 => array:2 [ "identificador" => "xpalclavsec1057087" "titulo" => "Palabras clave" ] 5 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 6 => array:3 [ "identificador" => "sec0010" "titulo" => "Material and Methods" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "sec0015" "titulo" => "Patients" ] 1 => array:2 [ "identificador" => "sec0020" "titulo" => "Design and Programme" ] 2 => array:3 [ "identificador" => "sec0025" "titulo" => "Evaluation and Outcomes" "secciones" => array:3 [ 0 => array:2 [ "identificador" => "sec0030" "titulo" => "Functional Exercise Capacity" ] 1 => array:2 [ "identificador" => "sec0035" "titulo" => "Flexibility" ] 2 => array:2 [ "identificador" => "sec0040" "titulo" => "Lung Function" ] ] ] 3 => array:2 [ "identificador" => "sec0045" "titulo" => "Statistical Analyses" ] ] ] 7 => array:2 [ "identificador" => "sec0050" "titulo" => "Results" ] 8 => array:2 [ "identificador" => "sec0055" "titulo" => "Discussion" ] 9 => array:2 [ "identificador" => "sec0060" "titulo" => "Conclusions" ] 10 => array:2 [ "identificador" => "sec0065" "titulo" => "Funding Statement" ] 11 => array:2 [ "identificador" => "sec0070" "titulo" => "Authorship" ] 12 => array:2 [ "identificador" => "sec0075" "titulo" => "Conflict of Interests" ] 13 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2018-03-01" "fechaAceptado" => "2018-05-01" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec1057086" "palabras" => array:3 [ 0 => "Bronchopulmonary dysplasia" 1 => "Children" 2 => "Exercise" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec1057087" "palabras" => array:3 [ 0 => "Displasia broncopulmonar" 1 => "Niño" 2 => "Ejercicio" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:3 [ "titulo" => "Abstract" "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Introduction</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Bronchopulmonary dysplasia (BPD) is the most common complication of extreme preterm delivery, and is associated with reduced exercise tolerance and exercise capacity. The aim of this study was to assess the effects of a physical activity programme on exercise tolerance, exercise capacity, flexibility, and lung function in prematurely born children with BPD.</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Methods</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">This was a randomized controlled trial. Preterm children with BPD (4–6 years) were randomized to intervention (IG) and control (CG) groups. The CG did not participate in any physical activity during the study period. The IG performed a 4-week exercise programme based on aerobic interval and resistance training. Outcomes were based on the 6-minute walk test (6MWT), incremental shuttle walk test (ISWT), modified sit and reach test (MSRT) and spirometry results.</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Results</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Twenty individuals were recruited. In the IG (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>10), statistical and clinical improvement was observed in the 6MWT (316.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>31.4<span class="elsevierStyleHsp" style=""></span>m vs 376.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>39.5<span class="elsevierStyleHsp" style=""></span>m; <span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.002). Significant improvements were also seen in the IG in the ISWT (248.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>45.2<span class="elsevierStyleHsp" style=""></span>m vs 465.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>58.2<span class="elsevierStyleHsp" style=""></span>m; <span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.013), MSRT (14.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>7.7<span class="elsevierStyleHsp" style=""></span>cm vs 22.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6.9<span class="elsevierStyleHsp" style=""></span>cm; <span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.003), and FEV<span class="elsevierStyleInf">1</span> (102%<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>16% pred vs 104%<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17% pred; <span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>.004). No significant differences between pre- and post-intervention were observed in the CG for all outcomes (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>10).</p></span> <span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Conclusion</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">This 4-week programme resulted in statistical and clinical improvements in exercise tolerance, exercise capacity and flexibility in preterm children with BPD.</p></span>" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0010" "titulo" => "Introduction" ] 1 => array:2 [ "identificador" => "abst0015" "titulo" => "Methods" ] 2 => array:2 [ "identificador" => "abst0020" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0025" "titulo" => "Conclusion" ] ] ] "es" => array:3 [ "titulo" => "Resumen" "resumen" => "<span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Introducción</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">La displasia broncopulmonar (DBP) es una secuela frecuente entre los prematuros extremos, asociándose a una reducción en la tolerancia y en la capacidad al ejercicio. El objetivo de este estudio es evaluar los efectos de un programa de entrenamiento basado en la tolerancia y en la capacidad al ejercicio, la flexibilidad y la función pulmonar en niños prematuros con DBP.</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Métodos</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">El ensayo clínico se hizo con niños prematuros con DBP (de 4 a 6 años), aleatorizados en 2 grupos, control (GC) e intervención (GI). El GC no participó en ninguna actividad física durante el estudio. El GI realizó un programa interválico y de resistencia de 4 semanas. Se evaluó el Six Minute Walking test (6MWT), el Incremental Shuttle Walk test (ISWT), el Modified Sit and Reach test (MSRT) y la espirometría.</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Resultados</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Se reclutaron 20 niños. No se observaron diferencias significativas entre la pre- y la postintervención en el GC (n<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>10). En el 6MWT se observó una mejoría significativa y clínica (316,3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>31,4<span class="elsevierStyleHsp" style=""></span>m vs. 376,2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>39,5<span class="elsevierStyleHsp" style=""></span>m; p<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0,002) al final de la intervención en el GI (n<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>10). El ISWT (248,0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>45,2<span class="elsevierStyleHsp" style=""></span>m vs. 465,3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>58,2<span class="elsevierStyleHsp" style=""></span>m; p<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0,013), el MSRT (14,5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>7,7<span class="elsevierStyleHsp" style=""></span>cm vs. 22,8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6,9<span class="elsevierStyleHsp" style=""></span>cm; p<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0,003) y la FEV<span class="elsevierStyleInf">1</span> (102<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>16% pred vs. 104<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17% pred; p<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0,004) también mejoraron significativamente en el GI.</p></span> <span id="abst0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Conclusiones</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Este programa de 4 semanas, mejora estadísticamente y clínicamente la tolerancia y la capacidad al ejercicio, y la flexibilidad en niños prematuros con DBP.</p></span>" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0030" "titulo" => "Introducción" ] 1 => array:2 [ "identificador" => "abst0035" "titulo" => "Métodos" ] 2 => array:2 [ "identificador" => "abst0040" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0045" "titulo" => "Conclusiones" ] ] ] ] "multimedia" => array:5 [ 0 => array:7 [ "identificador" => "fig0005" "etiqueta" => "Fig. 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1900 "Ancho" => 2167 "Tamanyo" => 240208 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">CONSORT 2010 flow diagram.</p>" ] ] 1 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at1" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "<p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">GA: gestational age; y: years; M: male; F: female; kg: kilogram; g: grams; cm: centimetres; w: week; %: percentage; % pred: percentage of predicted value; 6MWT: six minute walk test; ISWT: incremental shuttle walk test; MSRT: modified sit and reach test; FEV1: forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s; FVC: forced vital capacity; FEF 25%–75%: forced expiratory flow at 25%–75% of forced vital capacity.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Control group \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Intervention group \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span> Value (between) \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age (y) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">5.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.6<br>[5.0; 5.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">5.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.4<br>[4.8; 5.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.182 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Gender (M:F) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">6:4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">4:6 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.389 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Weight (kg) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">16.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>2.1<br>[14.6; 17.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>3.1<br>[15.1; 19.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.362 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Height (cm) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">106.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>4.0<br>[103.1; 108.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">107.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>5.4<br>[103.3; 111.0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.580 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">GA (w) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">26.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.3<br>[25.0; 26.9] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">25.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.0<br>[25.0; 26.5] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.741 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Birth weight (g) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">759.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>142.9<br>[656.7; 861.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">723.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>117.9<br>[639.1; 807.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.552 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">6MWT (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">63.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>16.3<br>[52.2; 75.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">61.6<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6.6<br>[56.8; 66.3] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.650 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">ISWT (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">44.6<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>22.1<br>[28.7; 60.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">31.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>11.8<br>[22.7; 39.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.128 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">MSRT (cm) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">13.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>3.8<br>[10.4; 15.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">14.7<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6.9<br>[9.8; 19.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.073 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEV1/FVC (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1<br>[92; 94] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1<br>[91; 94] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.413 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEV1 (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">102<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9<br>[95; 108] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">102<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>16<br>[85; 119] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.960 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FVC (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">111<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>11<br>[103; 118] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">110<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>19<br>[89; 130] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.937 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEF 25–75 (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">145<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>8<br>[139; 150] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">149<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>14<br>[134; 164] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.445 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab1911963.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Characteristics of Included Children in Both Groups.</p>" ] ] 2 => array:8 [ "identificador" => "tbl0010" "etiqueta" => "Table 2" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at2" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:3 [ "leyenda" => "<p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">CG: control group; IG: intervention group; 6MWT: six minute walking test; ISWT: Incremental Shuttle Walk Test; MSRT: Modified Sit and Reach test; m: metres; cm: centimetres; % pred: percentage of predicted value; SpO<span class="elsevierStyleInf">2</span> i: initial oxygen saturation; SpO<span class="elsevierStyleInf">2</span> f: final oxygen saturation; SpO<span class="elsevierStyleInf">2</span> 2’: two minutes after oxygen saturation measure; HR i: initial heart rate; HR f: final heart rate; HR 2’: two minutes after heart rate measure; FEV1: forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s; FVC: forced vital capacity; FEF 25%–75%: forced expiratory flow at 25%–75% of forced vital capacity.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " colspan="2" align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Control group</th><th class="td" title="table-head " align="left" valign="top" scope="col"><span class="elsevierStyleItalic">P</span> Value (within) \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " colspan="2" align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Intervention group</th><th class="td" title="table-head " align="left" valign="top" scope="col"><span class="elsevierStyleItalic">P</span> Value (within) \t\t\t\t\t\t\n \t\t\t\t</th></tr><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Initial \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Final \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Initial \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Final \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">6MWT (m) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">332.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>88.1 [269.7; 395.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">343.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>75.3 [290.0; 397.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.408 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">316.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>31.4 [293.8; 338.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">376.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>39.5<br>[347.9; 404.4] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.002<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SpO2 i \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>2<br>[96; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>2<br>[96; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.193 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.1 [97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.9<br>[97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.037<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SpO2 f \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1<br>[96; 97] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.7 [96; 97] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.555 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.1 [96; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.1<br>[97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.269 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SpO2 2’ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.6<br>[97; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.9<br>[97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.394 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.3<br>[97; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.4 [98; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.399 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HR i \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9<br>[90; 103] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">99<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[92; 106] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.488 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>11<br>[88; 103] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[89; 103] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.860 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HR f \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">118<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[110; 125] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">119<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>12<br>[110; 128] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.549 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">119<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17<br>[107; 131] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">114<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[107; 121] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.250 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HR 2’ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">100<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>8<br>[94; 105] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">103<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>7<br>[98; 108] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.065 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">99<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9.2<br>[92; 105] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">99<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>7.9<br>[94; 105] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.789 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">ISWT (m) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">369.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>170.4 [247.9; 491.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">386.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>164.4 [268.8; 504.1] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.390 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">248.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>45.2<br>[152.9; 343.0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">465.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>58.2 [342.9; 587.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.013<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SpO2 i \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.9<br>[96; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.9<br>[96; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.168 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10 [97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0<br>[98; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.223 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SpO2 f \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.1<br>[96; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.6 [95; 97] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.111 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>4.2 [94; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.5<br>[97; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.154 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SpO2 2’ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.9<br>[97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.7 [97; 98] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.244 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1.1<br>[97; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">99<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.9 [98; 99] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.104 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HR i \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">97<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9<br>[90; 103] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">100<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9<br>[93; 106] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.360 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">95<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>11<br>[87; 103] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">95<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>12<br>[86; 103] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.920 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HR f \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">142<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>29<br>[121; 163] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">154<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>21<br>[139; 169] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.167 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">139<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>19<br>[125; 153] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">173<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>21<br>[157; 188] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.016<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HR 2’ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">105<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[97; 112] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">99<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>32<br>[76; 122] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.600 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">104<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>13<br>[95; 113] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">109<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[101; 116] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.503 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">MSRT (cm) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">13.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>3.8<br>[10.4; 15.8] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">13.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>4.2 [10.2; 16.2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.874 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">14.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>7.7<br>[9.8; 19.7] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">22.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6.9<br>[17.8; 27.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.003<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEV1/FVC (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1<br>[92; 94] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1 [92; 94] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.193 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1<br>[91; 94] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>1<br>[91; 94] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.178 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEV1 (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">102<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9<br>[95; 108] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">98<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10<br>[81; 114] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.229 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">102<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>16<br>[85; 119] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">104<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17<br>[82; 125] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.004<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FVC (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">111<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>11<br>[103; 118] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">111<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>11<br>[103; 119] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.244 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">110<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>19<br>[89; 130] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">112<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>21<br>[86; 139] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.070 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEF 25–75 (% pred) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">145<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>8<br>[139; 150] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">144<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>8<br>[138; 150] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.210 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">149<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>14<br>[134; 164] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">151<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>15<br>[132; 169] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.347 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab1911961.png" ] ] ] "notaPie" => array:1 [ 0 => array:3 [ "identificador" => "tblfn0005" "etiqueta" => "*" "nota" => "<p class="elsevierStyleNotepara" id="npar0005"><span class="elsevierStyleItalic">P</span> Value<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>.05; <span class="elsevierStyleItalic">P</span>: <span class="elsevierStyleItalic">P</span> value.</p>" ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">Comparison Between Pre- and Post-intervention in Both Groups.</p>" ] ] 3 => array:8 [ "identificador" => "tbl0015" "etiqueta" => "Table 3" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at3" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:3 [ "leyenda" => "<p id="spar0080" class="elsevierStyleSimplePara elsevierViewall">CG: control group; IG: intervention group; Δ: difference; 6MWT: six minute walking test; ISWT: Incremental Shuttle Walk Test; MSRT: Modified Sit and Reach test; m: metres; cm: centimetres; mL: millilitres.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">CG \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">IG \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span> Value \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Δ6MWT (m) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">11.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>40.4<br>[−17.8; 40.0] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">59.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>42.9 [29.1; 90.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.017<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">ΔISWT (m) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>58<br>[−25; 58] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">217<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>221<br>[58; 375.6] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.013<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">ΔMSRT (cm) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>6<br>[3; 12] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">11<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>2<br>[-1; 2] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.002<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">*</span></a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">ΔFEV1 (mL) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">80<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>94<br>[−70; 231] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">4<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>61<br>[-71; 80] \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">.187 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab1911962.png" ] ] ] "notaPie" => array:1 [ 0 => array:3 [ "identificador" => "tblfn0010" "etiqueta" => "*" "nota" => "<p class="elsevierStyleNotepara" id="npar0010"><span class="elsevierStyleItalic">P</span> Value<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>.05; <span class="elsevierStyleItalic">P</span>: <span class="elsevierStyleItalic">P</span> value.</p>" ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">Comparison of Improvement Between Initial and Final Evaluations in Both Groups.</p>" ] ] 4 => array:5 [ "identificador" => "fig0010" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => false "mostrarDisplay" => true "figura" => array:1 [ 0 => array:4 [ "imagen" => "fx1.jpeg" "Alto" => 971 "Ancho" => 1333 "Tamanyo" => 65634 ] ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0015" "bibliografiaReferencia" => array:51 [ 0 => array:3 [ "identificador" => "bib0260" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Bronchopulmonary dysplasia and prematurity. 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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 9 | 1 | 10 |
| 2024 October | 37 | 21 | 58 |
| 2024 September | 47 | 14 | 61 |
| 2024 August | 74 | 37 | 111 |
| 2024 July | 45 | 24 | 69 |
| 2024 June | 65 | 30 | 95 |
| 2024 May | 72 | 28 | 100 |
| 2024 April | 38 | 30 | 68 |
| 2024 March | 23 | 44 | 67 |
| 2024 February | 30 | 21 | 51 |
| 2023 March | 7 | 6 | 13 |
| 2023 February | 47 | 19 | 66 |
| 2023 January | 20 | 24 | 44 |
| 2022 December | 55 | 24 | 79 |
| 2022 November | 45 | 14 | 59 |
| 2022 October | 65 | 44 | 109 |
| 2022 September | 26 | 18 | 44 |
| 2022 August | 37 | 41 | 78 |
| 2022 July | 38 | 44 | 82 |
| 2022 June | 28 | 31 | 59 |
| 2022 May | 43 | 56 | 99 |
| 2022 April | 42 | 30 | 72 |
| 2022 March | 47 | 38 | 85 |
| 2022 February | 34 | 38 | 72 |
| 2022 January | 30 | 37 | 67 |
| 2021 December | 46 | 40 | 86 |
| 2021 November | 91 | 41 | 132 |
| 2021 October | 54 | 52 | 106 |
| 2021 September | 30 | 46 | 76 |
| 2021 August | 33 | 37 | 70 |
| 2021 July | 52 | 17 | 69 |
| 2021 June | 40 | 32 | 72 |
| 2021 May | 62 | 52 | 114 |
| 2021 April | 84 | 77 | 161 |
| 2021 March | 85 | 41 | 126 |
| 2021 February | 27 | 25 | 52 |
| 2021 January | 241 | 21 | 262 |
| 2020 December | 32 | 21 | 53 |
| 2020 March | 40 | 12 | 52 |
| 2020 February | 98 | 25 | 123 |
| 2020 January | 77 | 14 | 91 |
| 2019 December | 100 | 19 | 119 |
| 2019 November | 49 | 29 | 78 |
| 2019 October | 64 | 9 | 73 |
| 2019 September | 48 | 12 | 60 |
| 2019 August | 18 | 11 | 29 |
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