The objective was to determine the test-retest reliability and criterion validity of the Physical Activity Scale for Individuals with Physical Disabilities (PASIPD).
Forty-five non-wheelchair dependent subjects were recruited from three Dutch rehabilitation centers. Subjects’ diagnoses were: stroke, spinal cord injury, whiplash, and neurological-, orthopedic- or back disorders. The PASIPD is a 7-d recall physical activity questionnaire that was completed twice, 1 wk apart. During this week, physical activity was also measured with an Actigraph accelerometer.
The test-retest reliability Spearman correlation of the PASIPD was 0.77. The criterion validity Spearman correlation was 0.30 when compared to the accelerometer.
The PASIPD had test-retest reliability and criterion validity that is comparable to well established self-report physical activity questionnaires from the general population.
Van der Ploeg, van der Beek, and van Mechelen are with the Dept of Public and Occupational Health, and Institute for Research in Extramural Medicine, VU University Medical Center, Amsterdam, The Netherlands; van der Beek and van Mechelen are also with Body@Work, Research Center Physical Activity, Work and Health, TNO VUmc, Amsterdam, The Netherlands. Streppel and Vollenbroek-Hutten are with Roessingh Research and Development, Enschede, The Netherlands. Van der Woude is with the Institute for Fundamental and Clinical Human Movement Sciences, Faculty of Human Movement Sciences, Vrije Universiteit Amsterdam, The Netherlands, and the Rehabilitation Center Amsterdam, The Netherlands.