Article

OBJECTIVES: To examine the relationship between measures of ambulation capacity
obtained in a clinical setting and measures of ambulation performance in the
community, and to explore what demographic and clinical variables influence
ambulation performance in people with lower-limb amputations. DESIGN: A
cross-sectional, correlational and descriptive study. SETTING: Rehabilitation
center and participants' homes and community environments. PARTICIPANTS:
Community-dwelling people (N=52) with lower-limb amputations at the unilateral
transfemoral (n=16), unilateral transtibial (n=30), and bilateral transtibial
(n=6) levels. All had been fit with prostheses for over 1 year. INTERVENTIONS:
Not applicable. MAIN OUTCOME MEASURES: Measures of ambulation capacity were the
Locomotor Capabilities Index version 5, the 2-Minute Walk Test (2MWT), and the
Timed Up and Go Test. Measures of ambulation performance included a commercially
available step activity monitor (SAM; steps per day, minutes active per day, peak
activity index) and self-reported performance with the Activity Restriction
subscales of the Trinity Amputation and Prosthesis Experience Scales (TAPES).
RESULTS: Most relationships among capacity and performance measures were in the
moderate to high range (Spearman correlation coefficients, rho=.41-.78, P<.05).
The highest correlation coefficient was between the 2MWT and SAM peak activity
index (rho=.78, P=.000). A multivariate analysis found the 2MWT was significantly
related to increased performance as measured by SAM mean steps per day (P=.026)
and TAPES (P=.016). Depressive symptoms were also a significant predictor
(P=.003) of decreased performance (TAPES). CONCLUSIONS: The 2MWT, a measure of
ambulation capacity, correlates well with most SAM measures of ambulation
performance. Exploratory regression analysis indicated that the 2MWT is related
to ambulation performance, while depression is only related to self-reported
performance.
CI - Copyright 2010 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS