Development and evaluation of the physical activity questionnaire for elderly Japanese: the Nakanojo study.
The Physical Activity Questionnaire for Elderly Japanese (PAQ-EJ) is a self-administered physical activity questionnaire for elderly Japanese; the authors report here on its repeatability and direct and indirect validity. Reliability was assessed by repeat administration after 1 month. Direct validation was based on accelerometer data collected every 4 s for 1 month in 147 individuals age 65-85 years. Indirect validation against a 10-item Barthel index (activities of daily living [ADL]) was completed in 3,084 individuals age 65-99 years. The test-retest coefficient was high (r = .64-.71). Total and subtotal scores for lower (transportation, housework, and labor) and higher intensity activities (exercise/sports) were significantly correlated with step counts and durations of physical activity <3 and >or=3 METs (r = .41, .28, .53), respectively. Controlling for age and ADL, scores for transportation, exercise/sports, and labor were greater in men, but women performed more housework. Sex- and ADL- or age-adjusted PAQ-EJ scores were significantly lower in older and dependent people. PAQ-EJ repeatability and validity seem comparable to those of instruments used in Western epidemiological studies.
Faculty of Liberal Arts and Sciences, Bunka Women's University, Tokyo, Japan.
Akitomo
A
Yasunaga
Hyuntae
H
Park
Eiji
E
Watanabe
Fumiharu
F
Togo
Sungjin
S
Park
Roy J
RJ
Shephard
Yukitoshi
Y
Aoyagi
D000054:Acceleration; D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D015444:Exercise / Q000502:physiology*; D005260:Female; D015438:Health Behavior; D006304:Health Status; D006801:Humans; D007564:Japan; D008137:Longitudinal Studies; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D011594:Psychometrics / Q000295:instrumentation*; D012737:Sex Factors; D011795:Surveys and Questionnaires / Q000592:standards*