Article

OBJECTIVE: To expand the construct validity of the Four Square Step Test (FSST)
in people with multiple sclerosis (PWMS). DESIGN: Cross-sectional study. SETTING:
Multiple sclerosis center. PARTICIPANTS: PWMS (N=218; 133 women, 85 men; mean
age, 43.2+/-13.5y; mean disease duration, 7.5+/-7.7y since diagnosis) were
enrolled in the study. The Expanded Disability Status Scale score was 3.1+/-1.3,
indicating minimal to moderate neurologic disability. INTERVENTIONS: Not
applicable. MAIN OUTCOME MEASURES: The FSST, posturography measures,
2-minute
walk test, timed Up & Go test, timed 25-foot walk, fall status, Falls Efficacy
Scale International, Modified Fatigue Impact Scale, instrumented cognitive
assessment, and 12-item Multiple Sclerosis Walking Scale. RESULTS: The FSST score
of the total sample was 11.0+/-4.9. Significant differences were observed between
the very mild, mild, and moderate disability groups: 8.8+/-3.4, 11.1+/-4.9, and
14.1+/-5.3, respectively. In terms of fall status, the fallers demonstrated a
significant slower FSST score than the nonfallers (12.5+/-5.7 vs 9.0+/-2.6,
respectively). Modest significant correlation scores were found between the FSST
and the timed Up & Go test and 2-minute walk test (Pearson rho=.652 and
rho=-.575, respectively). In terms of posturography, all measures were
significantly associated with the FSST scores. A significant positive relation
was observed with the visual spatial cognitive domain (Pearson rho=-.207).
CONCLUSIONS: The current study supports and broadens the construct validity of
the FSST in PWMS.
CI - Copyright (c) 2016 American Congress of Rehabilitation Medicine. Published by
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Langue : ANGLAIS