Relação das amplitudes de movimento de quadril, joelho e tornozelo no desempenho no ybalance test

Abstract

Introduction: Among the various functional tests present in clinical practice, the Y Balance Test (YBT) is one of the most used, whether for evaluating athletes, determining injury risks or monitoring rehabilitation processes. It is characterized as an efficient functional test, with good reproducibility and low cost, but little is known about the relationship between modifiable variables and its performance. Objective: To verify the relationship between hip, knee and ankle ranges of motion in the performance of the Y Balance test. Methodology: We selected 19 male individuals, physically active, aged between 18-30 years, with no record of complaints in the upper, lower limb or spine for at least 6 months. All performed the YBT on the dominant limb. During the execution of the YBT, the volunteer was filmed with two 240 Hz two-dimensional cameras (Noraxon®) for the analysis of hip, knee and ankle kinemetry, the images were analyzed using the Myovideo software (Noraxon®). For correlation, the Person Correlation test (r values) was used, with a significance level of p≤0.05. Results: a positive and direct correlation was verified between ankle dorsiflexion and YBT anterior direction, hip flexion and posteromedial direction and in knee valgus and posterolateral direction. All correlations were classified as moderate to strong. Conclusion: Range of motion in ankle dorsiflexion, hip flexion and knee valgus has an important relationship with better performance in the Y Balance test.