Article

OBJECTIVE: To investigate the factor structure and scale properties of items
underlying the mobility activities subdomains of the International Classification
of Functioning, Disability and Health (ICF).
DESIGN: A cross-sectional
self-report-based psychometric study. SETTING: Outpatient rehabilitation settings
(N=3) in 3 urban areas of Spain. PARTICIPANTS: Convenience sample of 615 patients
with musculoskeletal conditions (mean age, 38.1y) participating in an active
physiotherapy program. INTERVENTIONS: Not applicable. MAIN OUTCOMES MEASURES: A
22-item Mobility Activities Measure by using a self-report questionnaire that
assessed whether patients had limitations on daily activities across major ICF
categories of mobility subdomains. Factor analysis, tests of item scaling,
internal consistency reliability analysis, Rasch item response theory modeling,
and modified parallel analysis were used. RESULTS: Initial exploratory factor
analysis results for each ICF subdomain produced a total of 5 distinct and
interpretable factors or dimensions: changing and maintaining body position
involving sitting and/or lying; changing and maintaining body position involving
standing up; carrying, moving, and handling objects using the hand and shoulder;
carrying, moving, and handling objects using the hand and/or forearm; and walking
and moving. Dimensionality of these 5 factors was verified by using confirmatory
factor analyses and scaling assumptions were met for each dimension. Rasch
scaling and modified parallel analysis supported the unidimensionality.
CONCLUSIONS: The Mobility Activities Measure is a promising new self-report
measure of mobility activities as defined by the ICF. Information about Mobility
Activities Measure items and dimensions from this study will be useful in the
future operationalization and implementation of ICF.
CI - Copyright (c) 2011 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS