Relação entre o desempenho no dinamômetro isocinético e lesão muscular de não-contato no futsal

Abstract

Introduction - Futsal has a high incidence of muscle injuries that occur predominantly in the lower limbs. It is not described whether there is a relationship between the isokinetic variables of muscle strength and the occurrence of non-contact muscle injuries in the lower limbs in futsal athletes. Objective - To investigate whether there is a relationship between the muscle capacity variables measured by the isokinetic evaluation (ratio of agonist/antagonist torque, asymmetry in total work and asymmetry in maximum work in one repetition) and the occurrence of non-contact muscle injuries in the lower limbs in professional male futsal athletes. Methods - Retrospective observational study conducted with 27 athletes who were participating in 2017, 2018 and 2019 seasons. The athletes underwent isokinetic assessment in the pre-season of each year and the number of non-contact muscle injuries in the lower limbs was computed during each season. Pearson's correlation analysis was used to verify the association between variables. Results - The number of injuries recorded was correlated with the dominant lower limb agonist / antagonist torque ratio (r = 0.46, p = 0.02), asymmetry in the total work of knee extensors (r = 0.41, p = 0.04) and asymmetry in maximum work in a repetition of knee extensors (r = 0.45, p = 0.02). Conclusion - The isokinetic variables investigated are useful for scheduling preventive interventions during the season since they correlate with the number of muscle injuries.