Efeitos da crioimersão na percepção subjetiva de recuperação e no desempenho muscular em praticantes de Crossfit® submetidos a dano muscular induzido: um estudo quase experimental

Abstract

Introduction: CrossFit® (CF) is a method of physical training with great physical and mental stress among practitioners; therefore, recognize in advance recovery changes in athletes and intervening therapeutically in this condition influences directly the increase of athletic performance, in addition to reduce the risk of conditions related to overtraining. Widely widespread in the context of sport, cold water immersion (CWI) emerges as one of the most common practices to try to accelerate muscle recovery. Thus, we verified the need for studies related to the perception of recovery and CWI. Objective: To analyze the CWI’s effects on the recovery perception and muscle performance in CF practitioners. Materials and methods: 15 volunteers aged 30.6 ± 5.97 participated in this study. All were assessed using Perceived Exertion Scale (Borg), skin surface temperature, Total Quality Recovery Scale (TQR) and isokinetic dynamometry. In addition, they were submitted to the induction of damage protocol and CWI and they were reevaluated immediately after each moment. Further reevaluation occurred 24h and 48h later. Results: There was a statistical difference in pre-exercise Borg with all other times when the scale was applied (p <0.05), as well as between post-exercise Borg and all other moments (p <0.05). The value after intervention recorded a significant difference with all other values except 24 hours after exercise (p = 0.082). However, there was no significant difference between the values reached 24h and 48h after exercise (p = 0.227). The recovery state showed no significant difference. Its initial average was 15.2 ± 2.93, followed by 13.8 ± 2.80 after 24h and 14.6 ± 3.59 after 48h. Muscle performance had a significant difference in the pre-exercise test compared to all other times and between 24 and 48h after exercise (p <0.05). Conclusion: Participants recovered well after CWI, but they did not achieve return to muscle performance after 48 hours.