Deficits in dynamic balance were the motor impairments that best explained limitations in community ambulation after stroke.
Maria T Alvarenga, Patrick R Avelino, Kênia K DE Menezes and 3 others
PMID 36940179WHAT IT FOUND
For people walking independently after chronic stroke, dynamic balance was the only motor impairment that explained community ambulation limits.
Strength, coordination, and muscle tone did not. Assessing balance tasks like the Four-Step Square Test is key to understanding walking distance.
Key findings
01Dynamic balance, measured by the Four-Step Square Test, was the only motor impairment retained in the logistic model to explain community ambulation status.
02Knee extensor strength, lower-limb motor coordination, and plantarflexor muscle tone did not significantly explain variance in community ambulation.
03The study included only individuals who could already walk independently without devices, limiting applicability to those with more severe mobility restrictions.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The cross-sectional design cannot establish causality; it only shows association. The sample consisted exclusively of individuals who could already walk independently without devices, so results do not apply to those with more severe mobility impairments. Sensory and cognitive factors, which can affect walking, were not measured. The study was conducted in a laboratory setting, which may not fully reflect real-world community ambulation challenges.
Declared interests
The authors declared no conflicts of interest. The study was part of a larger project approved by an Institutional Research Ethical Committee.
The easy way to misread this
Do not interpret the odds ratio of 0.81 as a direct reduction in percentage points. The study shows an association, not that improving balance by one second will guarantee a specific increase in walking distance. Additionally, these findings apply only to stroke survivors who are already walking independently; they do not predict ambulation status for those who cannot walk without aids.