Article

OBJECTIVE: To validate accelerometry based on its correlations with 6-minute walk
distance (6MWD) and oxygen cost of walking as objective markers of walking
limitations in multiple sclerosis (MS). DESIGN: Cross-sectional. SETTING:
Laboratory and general community. PARTICIPANTS: Ambulatory participants with MS
(N=26) who resided in the local community. INTERVENTIONS: Not applicable. Patient Determined Disease Steps (PDDS) scale and Multiple
Sclerosis Walking Scale-12 (MSWS-12); 6-minute walk test while wearing a portable
metabolic unit for measuring the 6MWD and oxygen cost of walking; accelerometer
during the waking hours of a 7-day period. RESULTS: The average of total daily
movement counts from the accelerometer correlated significantly and strongly with
MSWS-12 scores (rho=-.681, P=.001), PDDS scores (rho=-.609, P=.001), 6MWD
(rho=.519, P=.003), and oxygen cost of walking (rho=-.541, P=.002). CONCLUSIONS:
We provide evidence that further supports the validity of accelerometry as a
measure of walking limitations in ambulatory persons with MS.
CI - Copyright (c) 2010 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS