Influence of load intensity on blood pressure after a resistance training session

Abstract

This study aimed to compare the blood pressure responses in normotensive-trained men following resistance training (RT) experimental sessions with loads of 60% and 80% of a one-repetition maximum. Ten participants underwent three experimental condition: (P60) – session adjusted with 60%, (P80) – session adjusted with 80% of 1 repetition maximum (1RM) and, (CONT) – only blood pressure assessments in rest condition for 60 min (intervals of 10 min). The resistance training design was adjusted with 3-sets, 3-min rest interval length between sets and exercises. Blood pressure was measured before, and at 10, 20, 30, 40, 50, and 60 min after the training session. The results showed that both protocols induce post-exercise hypotension (p < 0.05) compared to the rest values. The P80 showed greater magnitude and duration of post exercise hypotension when compared with P60 protocol (p < 0.05). In conclusion, resistance training is effective to provide a post exercise hypotension independent of the load intensities. This study is important to show the importance of control of the load intensity during development of resistance training programs and, the RT with 60% of 1RM can be as effective as protocols with 80% of 1RM to prevent the high blood pressure.