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Arch Phys Med Rehabil. 2008 Feb;89(2):304-10. doi: 10.1016/j.apmr.2007.08.142.

Gait asymmetry in community-ambulating stroke survivors.

Author information

1
Heart and Stroke Foundation Centre for Stroke Recovery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.

Abstract

OBJECTIVES:

To determine the prevalence and severity of asymmetry among independently ambulating stroke survivors and to establish the association between velocity and asymmetry.

DESIGN:

Descriptive analysis.

SETTING:

Research gait laboratory in a Canadian hospital.

PARTICIPANTS:

Community-dwelling, independently ambulating participants (N=54) with chronic stroke.

INTERVENTIONS:

Not applicable.

MAIN OUTCOME MEASURES:

Overground gait velocity, symmetry ratios for temporal and spatial step parameters, and motor impairment of the foot and leg. Spatiotemporal parameters were collected with a pressure-sensitive mat. Motor impairment was measured clinically with the Chedoke-McMaster Stroke Assessment.

RESULTS:

Thirty (55.5%) participants showed statistically significant temporal asymmetry and 18 (33.3%) exhibited statistically significant spatial asymmetry. Preferred velocity was negatively associated with temporal asymmetry (r=-.583, df=52, P<.001) but not spatial asymmetry (r=-.146, df=52, P=.29). Temporal asymmetry was also associated with motor recovery of the leg (r=-.644, df=35, P<.001) and foot (r=-.628, df=35, P<.001).

CONCLUSIONS:

The results of the current study illustrate that temporal asymmetry can be found in many independently ambulating stroke patients. The work highlights the need for a standard assessment of poststroke gait symmetry in light of the complex relationship with motor impairment and velocity.

PMID:
18226655
DOI:
10.1016/j.apmr.2007.08.142
[Indexed for MEDLINE]

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