Ajustes cardiovasculares frente às diferentes metodologias de exercício resistido em adultos saudáveis do sexo masculino

Abstract

The resistance exercises (RE) are currently recommended together physical activity programs as an important auxiliary therapeutic way to improve the cardiopulmonary capacity. The objective was to evaluate acute changes in the cardiovascular system face different methodologies of resistance exercise in healthy adult male. Cross-sectional study composed by 13 volunteers, submitted to 3 different protocols of RE: concentric knee extensors (A1); concentric knee flexors (A2) and super series exercise (A3). To verify the cardiovascular comportment, was measured: blood pressure (BP), heart rate (HR) and heart rate variability (HRV). A significative increment of BP was observed in all methodologies of RE, but A1 and A3 were more exacerbated. The HR showed an ascending behavior between the series of the 3 different forms of RE studied. These changes show us a cardiovascular overload and a vagal suppression differentiated during the different methodologies of RE, being these responses more pronounced during the A1 methodology.

"Effects of Two Different Types of Tele-Monitored Physical Training on Cardiac Autonomic Modulation in Healthy Young People"

“…Our findings did not find significant differences in the variables RRmean, HRmedium, HRmin, FRmax, VLF ms², LF ms², HF ms² and the LF/HF ratio in any of the groups, not corroborating the findings of Cardozo et. al., [20] that recorded significant values in the variables LF ms², HF ms² in the groups that performed concentric exercise of the isolated agonist: concentric exercise of the knee extensors, in 3 sets of 10 repetitions, with a velocity of 60°/sec. Lima [23] analyzed that high values of the variable pNN50…”

Analysis of Heart Rate Variability After Exercise With Oscillatory Pole

“…In contrast, during exercise, it is observed a reduction of parasympathetic modulation and an increase of sympathetic modulation, to adjust the metabolic demands required by the effort [21]. Immediately after the exercise end, the suppression of signals coming from the central nervous system and the cessation of mechanoreceptors action on skeletal muscles provide a reactivation of the parasympathetic nervous system as observed in SD1 index 0-5 minutes after exercise [22,23].…”