Efeitos de exercícios combinados realizados em diferentes períodos do dia na pressão arterial pós-exercício em atletas do jiu jitsu brasileiro / Effects of combined exercises performed in different periods of the day on post-exercise blood pressure brazilian jiu jitsu athletes

ABSTRACT

Post-exercise hypotension has been extensively investigated with combined exercise (aerobic + resistance). However, its response in different periods of the day is still unknown. Objective: To determine the effects of a combined exercise session performed at different times of the day on blood pressure response after exercise. Anaerobic threshold (AT) and 12 repetition maximum (12RM) tests were evaluated in nine male Brazilian jiu-jitsu athletes (22±3.7 y; 176±5.0 cm; 73.4±9.7 kg; 6.8±2.1 % body fat). Four experimental sessions were performed resistance exercise followed by aerobic exercise [Morning (RAM) and Afternoon (RAA)] and Control (C) [Morning and Afternoon]. The morning sessions were conducted at 0900 a.m. and the afternoon sessions were conducted at 300 p.m. Resistance exercise consisted of three sets at 90% of 12RM in six exercises, while aerobic exercise consisted of 15min at 90% of the AT. Blood pressure (BP) was measured before, during and 1h after the performance of exercises in laboratory. When comparing the AE and RE intensity marker variables (heart rate, RPE, running speed and number of repetitions) significant differences (p>0.05) were not evidenced between the experimental protocols (RAM and RAA). The morning session presented a hypotensive effect in SBP (mean recovery 1h) (109.5±6.9mmHg) when compared to control morning session (117.4±5.6mmHg) (p=0.001). Both sessions of combined exercise promoted HPE, without differences between them.(AU)