Análisis de datos en psicofisiología: función cardíaca barorreceptora y ejercicio físico
Fecha
2016-02-04
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Jaén: Universidad de Jaén
Resumen
Los barorreceptores actúan como principal mecanismo de regulación a corto plazo de la presión sanguínea y son
importantes para la prevención de cambios rápidos de la presión arterial a través de la modulación de la actividad
simpática como de la parasimpática. El objetivo de este estudio ha sido valorar el efecto que ejerce la práctica de
ejercicio físico sobre la función cardiaca barorreceptora en un grupo de 58 participantes diferenciados por realizar
alguna actividad física regularmente o por considerarse sedentarios. Este efecto se ha valorado durante tres
diferentes periodos experimentales: línea base, tarea de estrés mental y recuperación. Los resultados muestran una
actividad cardiovascular más óptima en el grupo de participantes activos frente al de sedentarios: mayores periodos
cardíacos, mayor variabilidad de la tasa cardíaca y mayor sensibilidad del reflejo barorreceptor. Estas diferencias
señalan una mayor actividad vagal parasimpática sobre el corazón en asociación con la práctica regular de ejercicio
físico.
Baroreceptor reflex act as principal short-term regulator of blood pressure and are important for preventing rapid changes in blood pressure through the modulation of both sympathetic and parasympathetic activity. The objective of this study was to consider the effect physical activity training on baroreceptor cardiac function in a group of 58 participants differentiated by fitness; they practice regularly some physical activity or were sedentary. We have studied how some psychophysiological variables react during three different experimental periods: baseline, mental stress task and recovery. The results show that individuals who exercise regularly obtained a better cardiovascular profile in comparison to the sedentary participants: longer heard period, grater heart rate variability and greater baroreceptor reflex sensitivity. These differences suggest a grater activation of the vagal parasimpathic nervous system in association with regular practice of physical exercice.
Baroreceptor reflex act as principal short-term regulator of blood pressure and are important for preventing rapid changes in blood pressure through the modulation of both sympathetic and parasympathetic activity. The objective of this study was to consider the effect physical activity training on baroreceptor cardiac function in a group of 58 participants differentiated by fitness; they practice regularly some physical activity or were sedentary. We have studied how some psychophysiological variables react during three different experimental periods: baseline, mental stress task and recovery. The results show that individuals who exercise regularly obtained a better cardiovascular profile in comparison to the sedentary participants: longer heard period, grater heart rate variability and greater baroreceptor reflex sensitivity. These differences suggest a grater activation of the vagal parasimpathic nervous system in association with regular practice of physical exercice.
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Psicología clínica y de la salud