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Arch Phys Med Rehabil. 1997 Jul;78(7):719-24.

Asymmetry of gait initiation in hemiparetic stroke subjects.

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  • 1Department of Neurological Rehabilitation, Free University Berlin, Germany.

Abstract

OBJECTIVE:

To investigate symmetry of gait initiation in healthy and hemiparetic subjects.

DESIGN:

Survey.

SETTING:

Kinematic laboratory affiliated with a hospital-based department of rehabilitation.

PATIENTS OR OTHER PARTICIPANTS:

Ten healthy and 14 hemiparetic stroke subjects starting five times with their right and left leg, respectively.

MAIN OUTCOME MEASURES:

Duration of defined periods, step length, center of pressure, and center of mass were recorded and calculated using two triaxial force plates, contact switches, and a video camera system.

RESULTS:

Healthy subjects displayed a high degree of independence of kinetic and kinematic parameters of the starting limb. Hemiparetic patients showed differences with respect to the starting limb: when starting with the nonaffected leg, the swing period and step length was shorter and the center of pressure displayed a more marked medio-lateral sway with no corresponding initial movement of the center of mass; when starting with the affected leg the movement pattern of the center of pressure and center of mass was comparable to that of normal subjects.

CONCLUSIONS:

The trajectories of the center of pressure and center of mass and the symmetry parameters are in accordance with a higher degree of uncertainty when starting with the non-affected limb in hemiparetic subjects.

PMID:
9228874
[PubMed - indexed for MEDLINE]
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