Estudo comparativo de diferentes estratégias de recuperação pós-exercício em atletas de Crossfit: aspectos funcionais e bioquímicos

Abstract

Crossfit® is a high-intensity sports modality whose most intense part is the WOD training of the day), which can lead to muscle fatigue, reducing performance and causing injury. In order to minimize consequences, therapeutic devices are used to accelerate muscle recovery after strenuous exercise, such as: static magnetic field photobiomodulation therapy (TFBM-CMe), extracorporeal shock wave therapy (OCD) and the pneumatic compression boot intermittent (CPI). However, the best resource for faster and more efficient muscle recovery in Crossfit® athletes is unknown. The objective of this study was to compare the effects of three different therapeutic resources on recovery from muscle fatigue in Crossfit® athletes. A randomized, controlled, crossover, blinded clinical trial was conducted. 12 Crossfit® athletes (18 to 36 years old) voluntarily participated, randomly distributed in a crossed order of the types of treatment (TFBM-CMe, OCD, CPI and control/passive recovery) to be received over the 4 weeks. Muscle recovery was assessed at baseline, 1h, 24h and 48h after performing the WOD. The evaluations consisted of the Countermovement JumpTest (CMJ) functional test; blood marker for muscle damage, (LDH) subjective perception of effort/fatigue (PSE), and degree of satisfaction with therapy (LIKERT). After normality testing, data were expressed as mean and standard deviation, and the significance level was set at p<0.05. In the CMJ functional test, TFBM-CMe showed a statistically significant difference in relation to passive recovery (p<0.05). In the LDH blood marker variation, TFBM-CMe presented statistically significant values in relation to passive recovery, TOC and CPI (p<0.05). Therefore, in the comparison between OCD and CPI therapeutic resources, as well as passive recovery, TFBM-CMe proved to be more efficient in recovering signs of muscular fatigue, both functional and physiological, after strenuous exercise.