Avaliação dos efeitos da suplementação com o cogumelo Agaricus Blazei em uma sessão aguda de exercícios de força

Abstract

Introduction: The practice of physical exercise promotes the formation of microtraumas in the muscle, which discourages the release of proteins in the inflammatory response with subsequent resolution of inflammation and hypertrophy. The Agaricus blazei mushroom, in human studies, was shown to be an immunomodulator when TNFα was published and IL-1β, IL-2, IL-6, IL-8 and IL interleukins (IL) -17. Objective: To evaluate the effects of supplementation with the Agaricus blazei mushroom in subjects submitted to an acute exercise session. Method: A crossover, double-blind, placebo-controlled study with 14-day washout. Experimental group of 14 male subjects, aged 18 to 35 years, trained. Participants ingested the mushroom or placebo base supplement for 10 days, 6 days before the exercise, on the day of the exercise and on the next three days of testing. The volunteers underwent an acute unilateral training protocol (7 sets of 10 repetitions at 100% of 1 maximal repetition (RM) in the legpress, with controlled eccentric action in 3 seconds). Measurements of thigh circumference, knee and hip range of motion (WMD), recovery scale, vertical jump and 1RM in pre and post exercise times, 24, 48 and 72 hours were measured. Results: In relation to measures of thigh circumference, the influence of time on the distal circumference is observed, where there is a reduction 72 hours after the acute exercise session (p = 0.04). When analyzing the ADM results, it can be observed that there was a reduction in knee ROM of the placebo group 48 hours after the exercise session that was not observed in the experimental group (p = 0.016). Regarding the results of vertical jump and 1RM, the main effect of time was observed, where the volunteers showed a decrease of the performance immediately after the execution of the exercise (p = 0.0001) and that it is maintained up to 72 hours after the same in the vertical jump (p = 0.001), and immediately after (p = 0.035) and 24hs (p = 0.014) in the 1RM test. In the analysis of the squat recovery scale, the effects were only of time for the gluteus and quadriceps, in which there was a difference in the perception of recovery of the volunteers between the post exercise and 24 and 48 hours for the two groups. Conclusion: The results of the present study showed that there was no effect of supplementation with the mushroom Agaricus blazei a strength exercise session, however showed that eccentric exercise can cause changes in parameters of muscle pain and performance of individuals which requires further investigations about the potential effect of the same in the processes that involve the muscular strength gain.