Does electromyographic biofeedback improve exercise effects in hemiplegic patients? A pilot randomized controlled trial.
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. 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. Significant improvements were found for range of motion, muscle strength, Barthel Index and 10-m walking time in both groups. 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.