Utilização do ciclo de alongamento-encurtamento em mulheres e homens jogadores de futebol: uma revisão sistemática

Abstract

Purpose: This systematic review sought to verify the use of the stretch-shortening cycle (SSC) in soccer players. To provide information on the ability to use the CAE in these athletes, of different genders, ages, and competitive levels. Materials and methods: according to PRISMA guidelines, five databases were systematically searched (PubMed (Medline), Scopus, Web of Science, SportDiscus and Embase), with the search terms "vertical jump*", "squat jump*", "SJ", "countermovement jump*", "counter movement jump*" and "CMJ", combined with the Boolean operator “OR”. These were aggregated to the terms “soccer*” and “football*” by the Boolean operator “AND”. The use of the SSC was calculated through the percent pre-stretch augmentation (PPA), through the equation: (SCM - SA) / SA*100. Results: After screening 3,921 articles, 219 articles were considered eligible, evaluating 12,187 players. Of these, 21 evaluated women (755 participants) and 200 evaluated men (11,432 participants). Of the articles that evaluated men, 56 had professional players (2,508 players), 16 semi-professional players (698 players) and 138 were young athletes, 70 of which were post pubertal young (2,530 youngsters) and 86 young (5,696 youngsters). The PPA was 8.00% (95%CI = 5.90 - 10.14%) for women, 6.16% for men (95%CI = 5.03 - 7.29%) for professional players, 8 .55% (95%CI = 5.76 - 11.33%) for semi-professionals, 6.57% (95%CI = 5.67 - 7.45%) for post pubertal young and 7.04% (95%CI = 6 .13 - 7.93%) for young. Conclusion: The values found in this review for the PPA interval, in the sample studied, ranged from 5.03 to 11.33%, a value lower than that previously presented in the literature. Thus, we propose an update in this interval, based on the data from the present study. These values would serve as a reference to indicate the appropriate use of CAE in soccer players, according to the competitive level and sex.