Effects of real-time gait biofeedback on paretic propulsion and gait biomechanics in individuals post-stroke.

Nine participants were analysed, so the study cannot establish how many patients would respond or how durable the response would be. The study tested only one short session and retention only up to 30 minutes, so it does not show whether effects last after days, weeks, or repeated training. Outcomes were laboratory treadmill gait biomechanics, not over-ground walking, speed, endurance, balance, or daily function. The control comparison was only a 6-minute no-biofeedback bout against the first biofeedback bout; the full 18-minute biofeedback training was not compared with a separate control session. The same target push-off force was used throughout training, and target selection relied on brief 30-second trials and a 50% success rule. Feedback was intermittent 1-minute on/off without a faded feedback schedule, and the study did not explore optimal dosage or feedback frequency. Participants had to be able to walk on a treadmill for 6 minutes and communicate with investigators, and two screened participants were excluded for hemi-neglect or inability to follow instructions, so results may not apply to more severely affected or cognitively impaired patients. The supplied methods do not describe randomisation or blinding of outcome assessment.

The paper is labelled as supported by NIH extramural research funding. The supplied text does not include an author conflicts-of-interest declaration.

Do not conclude that this biofeedback improves long-term walking or function. The study measured nine people in one laboratory session, with retention only up to 30 minutes and no over-ground or functional outcomes.