The Relationship Between the Kinetic Parameters, Electromyography Activity, and Kinesiophobia Among Copers, Chronic Ankle Instability, and Healthy Subjects During Gait Initiation: A Cross-Sectional Study

• DOI: 10.1123/jsr.2024-0210
• Publication Date: 2025-04-25T18:10:30Z
• Authors: Marzieh Mortezanejad; Zahra Ebrahimabadi; Abbas Rahimi; Fatemeh Ehsani; Ali Maleki; Alireza Akbarzade...
• Keywords: Excursion; Postural instability

Context: Following a lateral ankle sprain, chronic instability (CAI) subjects show recurrent episodes of giving way, while copers do not exhibit way and overcome the challenging condition postural control. During gait initiation (GI), individuals with CAI reveal shorter center pressure (COP) displacement earlier muscle activity compared healthy controls. Copers have been previously controls during GI. Design : The study design was cross-sectional. Method Sixty participants (20 CAI, 20 copers, controls) right (dominant) limb injury participated in based on inclusion exclusion criteria. short form Tampa Scale Kinesiophobia filled out. Participants performed GI nonaffected leg force plate that synchronized Electromyography Megawin for 2 strides. divided into 3 phases COP excursion (S1, S2, S3). Onset time electromyography both soleus tibialis anterior muscles were analyzed along maximum mean velocity anterior–posterior medial–lateral directions total Results results indicated had significantly higher peak direction S2 ( P = .029), S3 .018), .018) CAI. Additionally, showed activation .022). There significant difference scores between other groups < .001). Conclusion findings demonstrated supraspinal alteration who lower exhibited an increased