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        "resumen" => "<span class="elsevierStyleSectionTitle">Background</span><p class="elsevierStyleSimplePara elsevierViewall">A continuously paced shuttle walk test &#40;SWTp&#41; was developed to test the hypothesis that speed and rhythm could be more optimally imposed by an easier-to-follow sound stimulus at every step&#46; The objective of this study was to assess the reproducibility of the SWTp and to compare the performance of patients with chronic obstructive pulmonary disease &#40;COPD&#41; on the conventional and optimally paced forms of the test&#46;</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p class="elsevierStyleSimplePara elsevierViewall">The walk test results of 24 COPD patients were studied&#46; All patients completed 2 SWTp sessions and a conventional SWT in random order&#44; after an initial practice test for each&#46; A portable device was used to measure peak oxygen uptake &#40;VO<span class="elsevierStyleInf">2</span>&#41; in 6 patients&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">The intraclass correlation coefficient &#40;Cronbach&#39;s &#945;&#41; was 0&#46;95 for the STWp&#46; The Pearson correlation coefficient between distance walked and peak VO<span class="elsevierStyleInf">2</span> in the SWTp was 0&#46;86 &#40;<span class="elsevierStyleItalic">P</span>&#60;&#46;02&#41;&#46; Better performance was achieved during the SWTp &#40;peak VO<span class="elsevierStyleInf">2</span>&#44; 3&#46;30 mL&#47;kg&#47;min&#59; <span class="elsevierStyleItalic">P</span>&#60;&#46;01&#59; distance walked&#44; 32 m&#44; <span class="elsevierStyleItalic">P</span>&#60;&#46;001&#41; than during the conventional SWT&#46; The SWTp showed excellent reproducibility&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">COPD patients can achieve better performance with the stimuli provided in the SWTp than in the conventional SWT&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Se ha desarrollado una prueba de lanzadera por tramos &#40;SWT&#44; de <span class="elsevierStyleItalic">shuttle walk test</span>&#41; con estimulaci&#243;n auditiva continua &#40;SWTp&#44; <span class="elsevierStyleItalic">paced shuttle walk test</span>&#41; para comprobar la hip&#243;tesis de que es posible que los pacientes consigan una velocidad y un ritmo mejores mediante la aplicaci&#243;n de un est&#237;mulo sonoro&#44; de seguimiento m&#225;s f&#225;cil por ellos y correspondiente a cada paso que realizan en la prueba&#46; El objetivo de este estudio ha sido evaluar la reproducibilidad de la SWTp y comparar el rendimiento de los pacientes con enfermedad pulmonar obstructiva cr&#243;nica &#40;EPOC&#41; en la SWT con estimulaci&#243;n sonora convencional y en la SWTp con estimulaci&#243;n sonora &#243;ptima&#46;</p> <span class="elsevierStyleSectionTitle">Pacientes y m&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Se han evaluado los resultados obtenidos por 24 pacientes con EPOC en la prueba de ejercicio de caminar&#46; Todos los pacientes completaron 2 sesiones de SWTp y una sesi&#243;n de SWT convencional&#44; tras su distribuci&#243;n aleatoria a los grupos y despu&#233;s de efectuar una sesi&#243;n inicial de pr&#225;ctica con cada una de las pruebas&#46; Se utiliz&#243; un dispositivo port&#225;til para determinar el consumo de ox&#237;geno &#40;VO<span class="elsevierStyleInf">2</span>&#41; m&#225;ximo en 6 pacientes&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">El coeficiente de correlaci&#243;n intraclase &#40;alfa de Cronbach&#41; fue de 0&#44;95 para la STWp&#46; El coeficiente de correlaci&#243;n de Pearson entre la distancia recorrida en la prueba y el VO<span class="elsevierStyleInf">2</span> m&#225;ximo respecto a la SWTp fue de 0&#44;86 &#40;p &#60; 0&#44;02&#41;&#46; Se consigui&#243; un rendimiento mejor durante la SWTp &#40;VO<span class="elsevierStyleInf">2</span> m&#225;ximo de 3&#44;30 ml&#47;kg&#47;min&#44; p &#60; 0&#44;01&#59; distancia recorrida de 32 m&#44; p &#60; 0&#44;001&#41;&#44; en comparaci&#243;n con la SWT convencional&#46; La SWTp se acompa&#241;&#243; de una reproducibilidad excelente&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">Los pacientes con EPOC pueden alcanzar un rendimiento mayor con el est&#237;mulo auditivo proporcionado en la SWTp que con el correspondiente a la SWT&#46;</p>"
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