Article

PURPOSE: To evaluate the reliability and minimum detectable change (MDC) of
spatial-temporal gait parameters in subjects with multiple sclerosis (MS) during
dual tasking. METHOD:
This cross-sectional study involved 25 healthy subjects
(mean age 49.9 +/- 15.8 years) and 25 people with MS (mean age 49.2 +/- 11.5
years). Gait under motor-cognitive and motor-motor dual tasking conditions was
evaluated in two sessions separated by a one-day interval using the GAITRite
Walkway System. Test-retest reliability was assessed using intraclass correlation
coefficients (ICCs), standard errors of measurement (SEM), and coefficients of
variation (CV). MDC scores were computed for the velocity, cadence, step and
stride length, step and stride time, double support time, the % of gait cycle for
single support and stance phase, and base of support. RESULTS: All of the gait
parameters reported good to excellent ICCs under both conditions, with healthy
subject values of >0.69 and MS subject values of >0.84. SEM values were always
below 18% for both groups of subjects. The gait patterns of the people with MS
were slightly more variable than those of the normal controls (CVs: 5.88-41.53%
vs 2.84-30.48%). CONCLUSIONS: The assessment of quantitative gait parameters in
healthy subjects and people with MS is highly reliable under both of the
investigated dual tasking conditions.
CI - Copyright (c) 2014 Elsevier B.V. All rights reserved.

Langue : ANGLAIS