Comparação do equilíbrio dinâmico entre indivíduos convergentes e com insuficiência de convergência ocular: estudo transversal

Abstract

INTRODUCTION: The postural control system relies on information captured by the visual system to make necessary adjustments during both static and dynamic postures. OBJECTIVES: To verify if there is a difference in dynamic balance between individuals with convergence and those with ocular convergence insufficiency (CI). MATERIALS AND METHODS: This was a cross-sectional study with 68 healthy participants, 34 with convergence (CG; mean age: 24.93 ± 7.55) and 34 with CI (CIG; mean age: 28.09 ± 6.06). The primary outcome was dynamic balance assessed by the "Timed Up and Go" (TUG) test. The secondary outcome was the displacement of the foot center of pressure (CoP), evaluated on a force platform in both unipedal and bipedal standing postures. RESULTS: A statistically significant difference was observed between the groups for the variables: TUG (p=0.02) and postural displacement under the conditions: bipedal eyes closed (p=0.04) and unipedal right (p=0.01) and left (p=0.03). CONCLUSIONS: This study demonstrated that individuals with CI exhibit greater instability in dynamic conditions and in nearly static upright posture compared to individuals with convergence.