User-driven treadmill walking promotes healthy step width after stroke.
Margo C Donlin, Nicole T Ray, Jill S Higginson
PMID 33812294WHAT IT FOUND
Stroke survivors walked with significantly narrower step width on user-driven treadmills than on fixed-speed ones, even at matched speeds.
This suggests user-driven control may encourage a more stable, healthy-like gait pattern during rehabilitation.
Key findings
01Step width was significantly narrower on the user-driven treadmill (13.7 cm) compared to the fixed-speed treadmill (16.8 cm), even when speeds were matched.
02The user-driven control algorithm did not significantly change step length or step time compared to fixed-speed control.
03The narrower step width observed with user-driven control was closer to values seen in unimpaired walking.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study included only 18 participants, all of whom were high-functioning, independent ambulators. It is unclear if these results apply to patients with more severe impairments or poor balance who might require a wider step width for safety. The study was a cross-sectional comparison of walking conditions, not a longitudinal training intervention. It does not show whether using user-driven treadmills over time leads to lasting improvements in gait or reduced fall risk.
Declared interests
The authors declared no conflicts of interest.
The easy way to misread this
Do not assume that user-driven treadmills improve overall gait speed or step length. The study found no significant difference in step length or step time between the control types; the specific benefit identified was narrower step width.