Monitoramento das cargas internas de treino pelo método PSE-sessão, percepção de recuperação e avaliação de testes específicos de desempenho em atletas de jiu-jitsu durante o período preparatório para o campeonato nacional

Abstract

The aim of this study was to monitor internal training load, perceived recovery, and sport-specific performance, as well as to investigate the relationship between training load and performance in Brazilian Jiu-Jitsu (BJJ) athletes during an eight-week preparation period for a national championship. Fifteen male brown- or black-belt athletes participated in the study. Session rating of perceived exertion (session-RPE) and the duration of all training sessions were recorded to calculate internal training load, total weekly training load (TWTL), training monotony, strain, and the acute:chronic workload ratio (ACWR). Total Quality Recovery (TQR) was assessed before the first and last training sessions of each week. Sport-specific performance was assessed using the isometric and dynamic kimono grip tests (KGT) before the training period, at the beginning of weeks 3 and 6, and after week 8. Data were analyzed using linear mixed-effects models, accounting for the longitudinal structure of the repeated measurements. TWTL was higher in weeks 2, 3, and 5 compared with week 1 (p < 0.05), followed by reductions in weeks 7 and 8 (p < 0.05). TQR decreased in weeks 4 and 6 (p < 0.05) and increased in weeks 7 and 8 (p < 0.05). Performance in both the isometric and dynamic KGT improved in weeks 3 and 8 (p < 0.05). In addition, the highest dynamic KGT performance was observed in week 8 (p < 0.05). Recent weekly training load was negatively associated with changes in dynamic KGT performance (β = −1.01; p = 0.035), indicating that higher training loads during the weeks immediately preceding the assessments were associated with smaller improvements in performance. In contrast, accumulated training loads were not significantly associated with changes in either isometric or dynamic KGT performance (p > 0.05). In conclusion, the session-RPE method allowed for the monitoring of variations in internal training load across the microcycles, while TQR was sensitive to changes in perceived recovery status. Furthermore, higher recent weekly training loads may temporarily attenuate dynamic KGT performance. Therefore, the integrated use of session-RPE, TQR, and KGT may provide complementary information for monitoring BJJ athletes during preparation for competition.