Effect of Combined Visual Biofeedback and Metronome on Gait Reciprocity in Patients with Ischemic Stroke: A Pilot Study.

BACKGROUND: Visual biofeedback (BF) and rhythmic metronome stimulation (RMS) are used for correction of stroke gait. To determine the feasibility of improving gait reciprocity using BF technology combined with RMS. METHODS: Patients with subacute stroke in the Main group (n20 patients) underwent a course of BF training targeting the reciprocity parameter by RMS (9 sessions) plus standard rehabilitation. The Control group (n = 20) received standard rehabilitation only. Biomechanical gait analysis covering spatiotemporal, kinematic, and EMG parameters, as well as clinical scale assessments, was performed before and after the rehabilitation. RESULTS: At baseline and at the end of rehabilitation, the Main group showed a functionally more severe condition on the DGI and TUG scales (p < 0.05). Both groups displayed a typical picture of hemiparetic gait with asymmetry of biomechanical, kinematic, and EMG parameters. By the end of rehabilitation, the Main group showed a positive trend in the reciprocity parameter that did not reach statistical significance. In the Control group, no changes in the parameter were observed. CONCLUSIONS: A short-term (9-session) course of BF training did not produce a statistically significant improvement in the reciprocity parameter and requires confirmation in a powered randomized trial.