Efeito agudo do treinamento aeróbio e resistido na pressão arterial, controle autonômico e marcadores inflamatórios em idosas hipertensas sedentárias

Abstract

Introduction: The Brazilian elderly population shows steady rise projections for the coming decades, Brazil in 2025, will be among the six countries with the largest elderly population in the world. Occur the increased prevalence of chronic diseases such as hypertension and their risk factors for mortality. The aging process promotes decline in biological functions, in particular a reduction in the autonomic nervous system and result in heart rate variability (HRV) by a decrease in vagal modulation that presents itself as one of the responsible for the onset of hypertension in the elderly and increased risk of mortality. Objective: To investigate, in sedentary hypertensive elderly, the acute effects of 1h and 24h of aerobic training session (AT) and resistance training session (RT) on blood pressure, autonomic control and inflammatory markers. Materials and methods: Eight elderly women completed the survey (62.7 ± 0.7 years) who performed two training sessions: AT - 30 minutes continuous treadmill at an intensity of 80% of maximum heart rate; and RT - Four dynamic exercises with 3 sets with 12 repetitions, alternating with methodology by segment and 80% load of 10 repetitions maximum. We evaluated the acute blood pressure behavior, HRV, ultrasensitive C-reactive protein (hsCRP) and interleukin-6 (IL-6) in 1h and 24h after each training session. Results: It was recorded post-exercise hypotension (PEH) significant in systolic blood pressure in both training compared to idle status of ± 8.2 and 9.1 ± 1,2mmHg 2,3mmHg with AT in 1h and 24h respectively and ± 8.7 and 8.3 ± 1,4mmHg 1,4mmHg with RT in 1h and 24h respectively. The HRV sympathovagal the balance did not change in the AT and RT were sympathetic hyperactivation was higher than recorded in the AT at 1 hour after intervention. In inflammatory markers was no increase in IL-6 after 1h RT and RT. Conclusion: AT and RT promoted PEH in systolic pressure up to 24 hours without disturbances in autonomic modulation on AT and expected behavior for IL-6 in both workouts. Suggesting that the inclusion of AT and RT as non-pharmacological strategy es for the control of hypertension in elderly.