Efecto del pedaleo de brazos sobre el sistema cardiorrespiratorio de las personas con tetraplejia. (Effect of armcrank pedaling on the cardiorespiratory system of the people with tetraplegia).

Resumen

Resumen

Objetivos: Determinar el efecto de un programa de entrenamiento de pedaleo de brazos (PB) estacionario, sobre el sistema cardiorrespiratorio de personas con tetraplejia. Método: Se estudiaron 11 participantes con tetraplejia por lesión medular (LM) de origen traumático a niveles entre C4 y C6. Se midieron variables espirométricas (VC, FVC y MVV) y de Variabilidad de la Frecuencia Cardíaca VFC (HR, STDHR, RMSSD, LF, HF y HRVPOWER), antes y después de 8 semanas de entrenamiento. Resultados: Todas las variables mostraron cambios significativos (p < 0,05) después del programa de entrenamiento aumentando su valor, excepto la FC que disminuyó. Las personas con las LM más bajas mostraron valores mayores en todos los parámetros espirométricos. Conclusiones: Un entrenamiento de PB a corto plazo es suficiente para mejorar de modo relevante tanto los parámetros respiratorios como los de VFC, en personas con tetraplejia, incrementando probablemente su calidad de vida.

Palabras clave: pedaleo de brazos; tetraplejia; variabilidad de la frecuencia cardíaca; espirometría.

Abstract

Objective: The aim of the study was to determine the effect, in subjects with tetraplejia, of a stationary armcrank pedaling (AP) training program on their cardiorespiratory system. Method: 11 participants with tetraplegia, originated by traumatic spinal cord injury (SCI) at levels between C4 and C6, were included in the study. Spirometric (VC, FVC and MVV) and Heart Rate Variability (HRV) indices (HR, STDHR, RMSSD, LF, HF, HRVPOWER) were measured before and after an 8 weeks of armcrank pedaling training program. Results: Spirometric and HRV variables showed changes (p < 0.05) after the training program, all the variables increased their value after the program, except HR which was decreased. People with lower SCI showed higher respiratory parameters. Conclusions: A short term AP training program is sufficient to meaningfully improve both respiratory and HRV parameters, in people with high tetraplejia, and probably increasing their quality of life.

Key words: armcrank pedaling; tetraplegia; heart rate variability; spirometry.

doi:10.5232/ricyde2010.02104

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