A Influência do fortalecimento do quadril sobre a ativação muscular e o controle postural dinâmico na instabilidade crônica do tornozelo (ICT)

Abstract

Objective: To analyze the influence of the strengthening of the hip musculature on the muscular activation (EMG) and the dynamic postural control in individuals with CAI. Method: A 32-subject sample with ankle sprain for more than 6 months, divided into 3 groups: traditional ankle exercises (TEG); traditional ankle and hip strengthening exercises (HASG) and the control group (CG). Was observed the Dynamic Postural Control (SEBT), muscle activation (EMG) during SEBT and ankle function pre, 4 weeks and 8 weeks after an ankle strengthening and proprioceptive exercise protocol (TEG), associated with hip strengthening (HASG). The data was analyzed in the SPSS (20.0) by ANOVA (two-way) and post-hoc Bonferroni test, to access the differences between the groups, considering a 5% significance level for all comparisons. Results: There were significant differences between the assessments in the dynamic postural control, muscle activation and the functionality of TEG and HASG (P<0.05), however no difference between groups (P>0.05). Conclusion: a protocol of 8 weeks of proprioceptive exercises and ankle muscle strengthening promoted improvement of dynamic postural control and ankle function in individuals with CAI regardless of strengthening of hip.