Article

OBJECTIVE: To examine the concurrent validity of the Six-Spot Step Test (SSST)
with clinical measures of walking and spatiotemporal measures of gait in multiple
sclerosis (MS), and to understand the utility of the SSST in individuals with
both low and high levels of disability. DESIGN: Cross-sectional study. SETTING:
Laboratory. PARTICIPANTS: Individuals with relapsing-remitting MS (N=29).
INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: In a single visit,
demographic information (age, sex, Expanded Disability Status Scale [EDSS],
symptom duration) and functional measures (SSST, timed Up and Go [TUG] test,
timed 25-foot walk [T25FW] test, spatiotemporal measures of walking) were
collected. RESULTS: The SSST demonstrates concurrent validity with the TUG test,
T25FW test, and 2-minute walk test (2MWT) (P</=.0002). Both spatial and temporal
measures of gait are significantly related to SSST performance (P<.004). In
individuals with lower disability (EDSS score 1-3.5), the SSST remains strongly
related to the TUG test and T25FW test performances, whereas it fails to relate
to any other measures. However, in the higher disability group (EDSS score 4-6),
the SSST is significantly related to the TUG test, T25FW test, 2MWT, walk
velocity, and both temporal and spatial measures of gait. CONCLUSIONS: The SSST
is an alternative test for lower-extremity function in the clinical setting that
may useful in both higher and lower EDSS groups. The SSST requires minimal
training to administer and may be a time-efficient measure of real-life
functional performance that would be useful in large clinical trials.
CI - Copyright (c) 2016 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS