Does electromyographic biofeedback improve exercise effects in hemiplegic patients? A pilot randomized controlled trial

Abstract

Objective: The aim of this pilot randomized study was to assess the efficacy potential of an electromyo-graphic biofeedback-assisted exercise programme on clinical and functional outcomes of hemiplegic patients in comparison with sham electromyogra-phic biofeedback.

Patients and methods: Thirty-four patients with hemiplegia were randomized into 2 groups. Both groups participated in an inpatient rehabilitation programme including exercise interventions and ambulation training 5 days a week for 2 weeks. Lower extremity exercises were performed via electromyogra-phic biofeedback in Group 1 (n = 17), while a sham technique was used for patients in Group 2 (n = 17). Range of motion, spasticity, muscle strength, func-tional level and walking speed were assessed before and after treatment. Follow-up was performed at 1 and 3 months after treatment.

Results: Significant improvements were found for range of motion, muscle strength, Barthel Index and 10-m walking time in both groups.

Conclusion: This study suggests that exercise with or without electromyographic biofeedback is effective for improving clinical and functional parameters in hemiplegic patients. Larger studies are needed to determine whether electromyographic biofeedback-assisted exercises provide additional benefits.