Article

OBJECTIVE: To examine the effects of concussion on gait patterns of young adults
with and without a history of concussion during single- and dual-task paradigms.
DESIGN: Cross-sectional evaluation. SETTING: A research laboratory. PARTICIPANTS:
Persons with (n=28; mean, 6.32y postinjury) and without (n=40) a concussion
history. INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: A battery of gait
analyses during single- and dual-task conditions. Normalized velocity, step
length, stride width, number correct from cognitive task, time in single-leg
stance, and time in double-leg stance were the variables of interest. Gait was
analyzed using an electronic walkway system, and the Brooks visuospatial
cognitive task was used to index cognition. RESULTS: Data analyses using multiple
2-way repeated-measures analyses of variance and correlations indicated that
participants with a history of concussion spent significantly more time in a
double-leg stance and significantly decreased time in a single-leg stance and had
slower gait velocity. There also was a significant negative correlation between
number of concussions and time in single-leg stance and positive correlations
between number of concussions and time in double-leg stance and double-stance
percent. CONCLUSION: These findings suggest that persons with a history of
concussion adopt a more conservative gait strategy.
CI - Copyright (c) 2011 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS