Article

OBJECTIVE: To determine the criterion validity of the Physical Activity Scale for
Individuals With Physical Disabilities (PASIPD) by means of daily physical
activity levels measured by using a validated accelerometry-based activity
monitor in a large group of persons with a physical disability. DESIGN:
Cross-sectional. SETTING: Participants' home environment. PARTICIPANTS:
Ambulatory and nonambulatory persons with cerebral palsy, meningomyelocele, or
spinal cord injury (N=124). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES:
Self-reported physical activity level measured by using the PASIPD, a 2-day
recall questionnaire, was correlated to objectively measured physical activity
level measured by using a validated accelerometry-based activity monitor.
RESULTS: Significant Spearman correlation coefficients between the PASIPD and
activity monitor outcome measures ranged from .22 to .37. The PASIPD
overestimated the duration of physical activity measured by using the activity
monitor (mean +/- SD, 3.9+/-2.9 vs 1.5+/-0.9h/d; P<.01). Significant correlation
(rho=-.74; P<.01) was found between average number of hours of physical activity
per day measured by using the 2 methods and difference in hours between methods.
This indicates larger overestimation for persons with higher activity levels.
CONCLUSIONS: The PASIPD correlated poorly with objective measurements using an
accelerometry-based activity monitor in people with a physical disability.
However, similar low correlations between objective and subjective activity
measurements have been found in the general population. Users of the PASIPD
should be cautious about overestimating physical activity levels.
CI - Copyright (c) 2011 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS