Reducir la presión arterial en personas mayores después del entrenamiento isométrico: ¿lo lactato tiene un papel?

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i9.7433

Palabras clave:

enjecimiento; antioxidantes; hemodinámica; hipertensión; contracción isométrica.

Resumen

Este studio tuvo como obejtivo investigar el efecto del entrenamiento de la empuñadura isométrica (EEI) en la reducción de la presión arterial (PA) en las personas mayores prehipertensivas e hipertensas, y el possible papel del lactoto y el equilibrio redox. Treint y tres mayores (75.3±1.3 años) fueron asignados a un grupo control sin ejercicio (GC, n=11), prehipertensivo (GPH, n=10) e hipertensivo (GH, n=12). GPH y GH realizaron un total de 8 series de contracciones bilaterales de 1-min a una contracción isométrica voluntaria máxima del 30% cada una separada por una pause de descanso de 1-min. El entrenamiento de EEI se realize durante 8 semanas, 3 veces por semana en días no consecutives. La PA sistóltica (PAS) y la frequencia cardíaca (FC) disminuyeron después del entrenamiento con GPH (-10 mm Hg; - 5 bpm) y GH (-9 mm Hg) (P<0,05). Además, la disminución de la PA se produjo en paralelo a un major equilibrio redox y una major biodisponibilidad de óxido nítrico en GPH y GH (P<0,05). Además, las variables que presentan mayor associación con la dismución de SBP fueron la concentración de lactate en sangre capilar y la fuerza muscular (P<0,05). En resumen, el entrenamiento de EEI puede ser práctico para mejorar el estado clínico de pacientes prehipertensivos e hipertensos, al mejorar el control de la PA, la biodisponibilidad de NO y el equilibrio redox. Se requieren más estudios para dilucidar las vías de concentración de lactate en el flujo sanguíneo durante el ejercicio.

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Publicado

01/09/2020

Cómo citar

SOUZA, L. H. R. .; CORRÊA, H. de L. .; ROSA, T. dos S.; NEVES, R. V. P. .; DEUS, L. A.; OLHER, R. R. .; VICENTE, J. B.; MELO, G. R. .; BARROS, C. F. de .; MORAES, V. C. .; COELHO, J. M. de O. .; PERUCHI, L. H.; SANTOS, C. P.; SIMÕES, H. G.; MORAES, M. R. Reducir la presión arterial en personas mayores después del entrenamiento isométrico: ¿lo lactato tiene un papel?. Research, Society and Development, [S. l.], v. 9, n. 9, p. e655997433, 2020. DOI: 10.33448/rsd-v9i9.7433. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/7433. Acesso em: 23 nov. 2024.

Número

Sección

Ciencias de la salud