Efeitos agudos e crônicos do exercício resistido sobre variáveis hemodinâmicas em idosas hipertensas medicadas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Physical exercise has been recommended as an important strategy on prevention and control of arterial hypertension (COHBANIAN et al., 2003). Besides aerobic exercise, which have their effects well established in the literature, resistance exercise has been recommended as a non-pharmacological therapy for hypertensive patients (FAGARD e CORNELISSEN, 2007), even though in elderly, due to its hypotensive effects after a single bout of resistance exercise (MEDIANO et al., 2005; MELO et al., 2006; MOTA et al., 2006) and after a period of resistance training (MARTEL et al., 1999; TAAFFEE et al., 2007). Therefore, the aim of the present research was to verify acute and chronic effects of the resistance exercise on blood pressure, heart rate and rate pressure product in hypertensive elderly women. A total of 46 sedentary elderly women, using anti-hypertensive drugs, participated in the study. Twenty elderly women (66,8 5,6 years old) underwent to the resistance training (RT) for 12 weeks (Experimental Group EG) and 26 women (65,3 3,4 years old) were located at control group (CG), with no physical exercise during this period. Blood pressure (BP), heart rate (HR) and rate pressure product (RPP) were measured at rest, after some bouts of resistance exercise and also after RT period. RT was realized with progressive loads of 60%, 70% and 80% of 1-RM (repetition-maximal) in 3 sets of 12, 10 and 8 repetitions, respectively. The study was approved by the Ethicals Committee of Universidade Católica de Brasília. ANOVA three-way (group x time x postexercise responses) was used to analyze training effects (chronic effects), responses after bouts of training (acute effects) and drugs effects. Data are presented in mean values standard error, with P≤0,05. Significant reductions at rest in systolic blood pressure (SBP) (125,2 9,3 vs 114,7 9,2), mean blood pressure (MBP) (89,7 6,9 vs 83,5 8,1) and RPP (9034,8 1512,9 vs 6816,2 1392,0) were found after RT. Postexercise hypotension was found after bouts of resistance exercise in SBP, diastolic blood pressure and MBP, as well as reduction in RPP during recovery. Then, it can be concluded that RT may be used as a pharmacological therapy complement for treating and controlling arterial hypertension in hypertensive elderly women.

ASSUNTO(S)

ciências da saúde treinamento resistido arterial hypertension idosos elderly hipertensão arterial resistance training

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