Au, BT and Blizzard, L and Schmidt, M and Pham, HL and Magnussen, C and Dwyer, T, Reliability and Validity of the Global Physical Activity Questionnaire in Vietnam, Journal of Physical Activity & Health, 7, (3) pp. 410-418. ISSN 1543-3080 (2010) [Refereed Article]
© 2010 Human Kinetics, Inc.
Background: The Global Physical Activity Questionnaire (GPAQ) was developed as an improvement of the International Physical Activity Questionnaire (IPAQ) for use in cross-cultural settings. This study compared the reliability and validity of GPAQ and IPAQ in Vietnam.
Methods: 251 adults were randomly selected from a population-based survey (n = 1978) of noncommunicable disease risk factors. GPAQ and IPAQ were administered on 2 occasions. Participants wore pedometers and logged their physical activity (PA) for 7 consecutive days.
Results: Test-retest correlations of GPAQ measurements differed for participants (n = 153) with stable work patterns (work PA r = .43, total PA r = .39) and those (n = 98) with unstable work patterns (work PA r = –0.02, total PA r = –0.05). IPAQ measurements did not differ in this way. GPAQ reliability was poorer for transport (GPAQ r = .25, IPAQ r = .60) and for leisure (GPAQ r = .21, IPAQ r = .45) PA. GPAQ estimates of total PA for participants with stable work patterns were moderately correlated with IPAQ total PA (r = .32), steps per day (r = .39), and PA log (r = .31).
Conclusions: The modifications made when designing GPAQ improved its reliability for persons with stable work patterns, but at the expense of poorer reliability for persons with more variable PA. GPAQ did not have superior validity to IPAQ.
|Item Type:||Refereed Article|
|Keywords:||exercise, walking, validation studies, measurement|
|Research Division:||Medical and Health Sciences|
|Research Group:||Human Movement and Sports Science|
|Research Field:||Human Movement and Sports Science not elsewhere classified|
|Objective Group:||Public Health (excl. Specific Population Health)|
|Objective Field:||Public Health (excl. Specific Population Health) not elsewhere classified|
|Author:||Au, BT (Dr Thuy Au)|
|Author:||Blizzard, L (Associate Professor Leigh Blizzard)|
|Author:||Schmidt, M (Dr Michael Schmidt)|
|Author:||Magnussen, C (Dr Costan Magnussen)|
|Web of Science® Times Cited:||3|
|Deposited By:||Menzies Institute for Medical Research|
|Downloads:||22 View Download Statistics|
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