Acute effects of different intensities on the muscle power production in football players: a systematic review
Abstract
The development of muscular power is among the most sought-after strategies by coaches and staffs in sports. Recently, the use of optimal training loads for exercise prescription has emerged as a highly effective approach since it seeks to find and utilize the load / intensity in which the highest muscular power output is observed. In sports as football, the optimal load for power production remains unknown. Through a systematic review, the present study had the aim to verify the effects of different intensities (e.g. load percentage relative to maximal strength [1-RM] and body mass) in the acute power output of lower limbs in football athletes. Throughout research in the electronic databases PubMed, Scopus, and Web of Science, 6345 studies were found. After research trials, 193 studies matched the stablished selection criteria for this study. Five studies were selected for the study. The results pointed the optimal load for the half squat is between 46% and 76% of the athletes’ body mass; the load for the jump squat was when a jump height of 20cm was attained, also the optimal load found was 1m.s-1 when the intensity was measured by the mean propulsive velocity (VPM). Although the results suggest optimal loads for power training of lower limbs in football athletes, studies with standardized assessment parameters are required.
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