title: Reliability and validity of the Chinese version of IPAQ (short, last 7 days).
abstract: The aim of this study was to examine the reliability and validity of the Chinese version of the International Physical Activity Questionnaire (IPAQ-C). The IPAQ-C was administered three times to each participant to examine the stability and reliability of the self-reported physical activity, whilst data to examine concurrent validity were acquired over 7 consecutive days using a physical activity log (PA-log), and an MTI accelerometer. A complete set of data was obtained from 49 Chinese residents (range 15-55 years; 30 males). The total physical activity recorded by IPAQ-C was acceptably reliable (ICC of 0.79 and %CV of 26%). There was weak agreement between IPAQ-C and the total MTI-derived activity and any of its constituent sub-components. Better agreement was seen between IPAQ-C and the PA-log data, with no significant difference between average total activity (3931 and 4047 MET min week(-1), respectively, p=0.51), and a bias and LOA of 3% and 94% of the mean score, respectively. Although these statistics are not dissimilar to those reported on other self-report physical activity questionnaires, suggesting the IPAQ-C is adequately reliable and valid for the measurement of total physical activity in a Chinese population, care needs to be taken, especially as the sub-components of total activity were markedly less valid and reliable.
authors.affiliation: Institute of Human Performance, The University of Hong Kong, 111-113 Pokfulam Road, Pokfulam, Hong Kong. djmac@hku.hk
authors.forename: Duncan J
authors.initials: DJ
authors.lastname: Macfarlane
authors.forename: Cherry C Y
authors.initials: CC
authors.lastname: Lee
authors.forename: Edmond Y K
authors.initials: EY
authors.lastname: Ho
authors.forename: K L
authors.initials: KL
authors.lastname: Chan
authors.forename: Dionise T S
authors.initials: DT
authors.lastname: Chan
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D015438:Health Behavior; D006723:Hong Kong; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000295:instrumentation; D009043:Motor Activity; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires