Verbal feedback enhances motor learning during post-stroke gait retraining.

Nine participants is a small sample, and only seven completed the variable practice block, so the study is preliminary and may not show effects that would appear in a larger group. The study tested one training session and lab biomechanical measures, not overground walking speed, Timed Up and Go, endurance, or falls risk. FastFES itself included fast treadmill walking and electrical stimulation to two muscle groups, so the feedback and variable practice conditions were not stand-alone treatments. The variable practice condition changed treadmill speed and stimulation timing at the same time, so the separate contribution of each cannot be identified. The physical therapist used non-scripted clinical judgment, so the exact words and demonstrations varied between participants. The study was not pre-registered as a clinical trial. Treadmill training speed was chosen for prolonged walking, which may not match short-distance overground speed in lower-functioning survivors. All participants could walk for 5 minutes at self-selected speed without an ankle foot orthosis, so results may not apply to non-ambulatory patients. For ankle angle at initial contact, the results section reports a more plantarflexed angle at retention compared with before training, while the discussion describes this change as restored at retention. A single session cannot establish cumulative learning over many treatments.

The supplied article text does not include a conflicts of interest or funding declaration. The publication types indicate NIH extramural and non-U.S. government research support.

Do not conclude that verbal feedback by itself improves walking after stroke. It was tested only as an addition to fast treadmill walking with electrical stimulation, and the study measured lab gait angles after one session, not long-term walking ability.