Article

OBJECTIVE: To determine the relative and absolute reliability of a dual-task
functional mobility assessment. DESIGN: Cross-sectional study. SETTING: Academic
rehabilitation hospital. PARTICIPANTS: Individuals (N=60) with lower extremity
amputation attending an outpatient amputee clinic (mean age, 58.21+/-12.59y; 18,
80% male) who were stratified into 3 groups:
(1) transtibial amputation of
vascular etiology (n=20);
(2) transtibial amputation of nonvascular etiology
(n=20); and (3) transfemoral or bilateral amputation of any etiology (n=20).
INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Time to complete the L Test
measured functional mobility under single- and dual-task conditions. The addition
of a cognitive task (serial subtractions by 3's) created dual-task conditions.
Single-task performance on the cognitive task was also reported. Intraclass
correlation coefficients (ICCs) measured relative reliability; SEM and minimal
detectable change with a 95% confidence interval (MDC95) measured absolute
reliability. Bland-Altman plots measured agreement between assessments. RESULTS:
Relative reliability results were excellent for all 3 groups. Values for the
dual-task L Test for those with transtibial amputation of vascular etiology
(n=20; mean age, 60.36+/-7.84y; 19, 90% men) were ICC=.98 (95% confidence
interval [CI], .94-.99), SEM=1.36 seconds, and MDC95=3.76 seconds; for those with
transtibial amputation of nonvascular etiology (n=20; mean age, 55.85+/-14.08y;
17, 85% men), values were ICC=.93 (95% CI, .80-.98), SEM=1.34 seconds, and
MDC95=3.71 seconds; and for those with transfemoral or bilateral amputation
(n=20; mean age, 58.21+/-14.88y; 13, 65% men), values were ICC=.998 (95% CI,
.996-.999), SEM=1.03 seconds, and MDC95=2.85 seconds. Bland-Altman plots
indicated that assessments did not vary systematically for each group.
CONCLUSIONS: This dual-task assessment protocol achieved approved levels of
relative reliability values for the 3 groups tested.
This protocol may be used
clinically or in research settings to assess the interaction between cognition
and functional mobility in the population with lower extremity amputation.
CI - Copyright (c) 2018 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS