The repeatability and accuracy of CHAMPS as a measure of physical activity in a community sample of older Australian adults
Giles, Kate & Marshall, Alison L. (2009) The repeatability and accuracy of CHAMPS as a measure of physical activity in a community sample of older Australian adults. Journal of Physical Activity and Health, 6(2), pp. 221-229.
Background: One to two-week test-retest reliability and construct validity (against pedometer step counts) of the CHAMPS physical activity questionnaire were evaluated in older Australian adults. Methods: Participants (n=100, aged >65 years) were invited to complete CHAMPS by mail. Spearman correlation coefficients are reported for physical activity constructs, time (min/week) and sessions/week for walking, moderate- and vigorous-intensity activity and total physical activity. Correct classification of participants as meeting physical activity recommendations assessed using percent agreement and kappa statistics. Results: 73 participants completed CHAMPS at T1; 54 provided repeat data (T2). 60% participants provided complete data. Good to excellent test-retest reliability was observed for all the physical activity constructs (rs=.70 - .89 sessions/week and rs=.65 - .75 for min/week). Agreement between proportions classified as meeting recommendations at T1 and T2 was good (79%; Kappa =.55). Fair to low validity coefficients were observed between steps and T1 CHAMPS walking and total activity sessions/week (rs=0.57 and rs=0.52), and min/week (rs=0.40 and rs=0.21). Conclusions: Mailed self-complete CHAMPS data provided reliable and valid estimates of physical activity in older Australian adults. Observed measurement coefficients were comparable to those reported in previous evaluations of CHAMPS. Further work is required to identify strategies to prevent data loss.
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|Item Type:||Journal Article|
|Keywords:||Measurement, Walking, Reliability, Validity|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Public Health and Health Services not elsewhere classified (111799)|
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700)
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health|
Current > Schools > School of Public Health & Social Work
|Copyright Owner:||Copyright 2009 Human Kinetics, Inc.|
|Deposited On:||31 Mar 2009 13:15|
|Last Modified:||29 Feb 2012 23:59|
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