Article

OBJECTIVE: To investigate the construct validity and test-retest reliability of
the Walking Questionnaire, a patient-reported measure of activity limitations in
walking in people with a lower limb amputation.
DESIGN: Cross-sectional study.
SETTING: Outpatient department of a rehabilitation center. PARTICIPANTS: People
with a lower limb amputation (N=172; mean age +/- SD, 65+/-12y; 71% men; 82%
vascular cause) participated in the study, 33 of whom also participated in the
reliability study. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES:
Construct validity was investigated by testing 11 hypotheses: limitations in
walking according to the Walking Questionnaire will be greater in people with a
lower limb amputation who (1) are older, (2) have a bilateral amputation, (3)
have a higher level of amputation, (4) underwent their rehabilitation treatment
in a nursing home, (5) walk less (in terms of time), and (6) walk shorter
distances. Furthermore, limitations in walking will be positively related to
activity limitations according to the (7) Locomotor Capabilities Index, (8)
"distance walked" question on the Prosthetic Profile of the Amputee
Questionnaire, (9) Questionnaire Rising and Sitting Down, (10) Climbing Stairs
Questionnaire, and (11) Special Interest Group on Amputation Medicine/Dutch
Working Group on Amputations and Prosthetics mobility scale. Construct validity
was quantified by using the Mann-Whitney U test and Spearman correlation
coefficient. Test-retest reliability was assessed with a 3-week interval and
quantified using the intraclass correlation coefficient. RESULTS: Construct
validity (10 of 11 hypotheses not rejected) and test-retest reliability were good
(intraclass correlation coefficient =.73; 95% confidence interval, .43-.88).
CONCLUSIONS: The Walking Questionnaire has good construct validity and
test-retest reliability in people with a lower limb amputation.
CI - Copyright (c) 2012 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS