| Objective: To investigate the influence of surface electromyographic biofeedback (sEMGBF) on eversion function in patients with functional ankle instability. Method: A total of 50 patients with functional ankle instability were selected in the outpatient and inpatient department of the rehabilitation department, and randomly divided into two groups: the control group (25 cases) and the experimental group (25 cases). Both groups received conventional rehabilitation treatment (joint range of motion training, balance function training and muscle strength training), and the experimental group was given sEMGBF additionally. All patients were evaluated before and 8 weeks after treatment. The peak torque of fibular muscle and joint stability were assessed through isokinetic myodynamia, and postural stability was evaluated through Pro-Kin 254. Results: After 8 weeks of treatment, the PT of ankle valgus and E/I values increased significantly in the two groups compared with those before treatment at 60°/s and 120°/s angular velocities(all P<0.05), and the PT of ankle valgus and E/I values in the experimental group were significantly better than those in the control group at 60°/s and 120°/s angular velocities (all P<0.05);after 8 weeks of treatment, the movement length, movement ellipse area, total offset index and ATE value increased significantly in the two groups compared with those before treatment (all P<0.05), and movement length, movement ellipse area, total offset index and ATE value in the experimental group were significantly better than those in the control group (all P<0.05). Conclusion: The sEMGBF can improve fibular muscle myodynamia and point stability, thereby improving postural control ability of FAI patients. |
