Descrição
Introduction: Manipulation of resistance training variables allows the maintenance the performance of the proposed exercise. Objetctive: To evaluation the acute effects of different rest intervals on maximum repetition performance, perceived exertion, and fatigue index on bench press. Methods: Following ten-repetition maximum testing and retesting, four experimental sessions involved seven bench press sets to concentric failure with the goal of completing the maximum number of repetitions, which included: 1) one-minute rest interval between sets (P1), 2) two-minute rest interval between sets (P2), three-minute rest interval between sets (P3), and five-minute rest interval between sets (P5). Results: A main result was observed in maximum repetition performance for all sets (p<0.001). In the fatigue index, only P3 and P5 showed significant differences compared to all other protocols (p<0.001). Besides, the perceived exertion shows a similar trend to fatigue index for longer rest intervals. Conclusion: Reducing the maximum repetition performance in shorter intervals is an important tool for reducing the total workout time.
