Análise da cocontração muscular em indivíduos com tálus anterior assintomático após manipulação articular

Abstract

Introduction: Chronic ankle instability may promote displacement of the talus relative to the calcaneus; joint manipulation is a common treatment for this dysfunction. Objectives: To evaluate the soleus and tibialis anterior co-contraction after talus manipulation in young individuals. Methods: Forty-eight subjects were divided into three groups: manipulated, placebo and control. Electromyography data were collected in two conditions, eyes open and closed, before and after the interventions. Results: The muscle co-contraction levels showed significant difference on eyes closed condition between groups (p=0.002) and evaluations (p=0.021). Conclusion: Subjects with talus displacement developed strategies to increase ankle joint stability; it is showed by the increased co-contraction index relative to the control group. After joint manipulation there was a muscle co-contraction decrease.