Atletas de footvolley pueden tener un desequilibrio en los músculos que mueven la rodilla: resultados preliminares (Atletas de footvolley pueden tener un desequilibrio en los músculos que mueven la rodilla: resultados preliminares)

The knee joint is the place with the highest prevalence of injuries in footvolley athletes, but there are no studies on the knee muscle balance in this population. The aim of the study was to evaluate the balance between the agonist and antagonist muscle groups that involve the knee joint, as well as the balance between the dominant and non-dominant sides in footvolley athletes. This is a cross-sectional, observational and analytical study in which an isokinetic dynamometer was used to assess the peak torque, total work, power, fatigue index and agonist / antagonist ratio of eight athletes. The paired t-student test was applied and a significance level of 5% was adopted, as well as a qualitative analysis. In the comparison between dominant and non-dominant sides, a statistically significant difference was observed for peak torque by body weight (p = 0.045) and power at 60 degrees / s (p = 0.027) in knee extension and for total work (p = 0.025), power at 60 degrees / s (p = 0.007) and fatigue at 300 degrees / s (p = 0.026) in knee flexion. Four athletes (50%) showed a difference greater than 10% in the peak torque of the extensor muscle group and three athletes (37.5%) showed a difference greater than 10% in the peak torque of the flexor muscle group on the non-side. dominant. There was also an imbalance between the agonist / antagonist muscle groups on the dominant side of four athletes (50%) and on the non-dominant side of six athletes (75%).