• Josephine D Gwynn, Louise L Hardy, John H Wiggers, Wayne T Smith, Catherine A D'Este, Nicole Turner, Janine Cochrane, Daniel J Barker, and John R Attia.
• Faculty of Health, University of Newcastle, Callaghan, New South Wales, Australia. Josephine.Gwynn@newcastle.edu.au
• Aust N Z J Public Health. 2010 Jul 1;34 Suppl 1:S57-65.

PurposeTo validate a self-report measure of physical activity for both Australian Aboriginal and Torres Strait Islander and non-Indigenous rural children, and to describe their physical activity participation.MethodsIn this cross-sectional study, 84 Aboriginal and Torres Strait Islander and 146 non-Indigenous children aged 10-12 years old completed the Many Rivers Physical Activity Recall Questionnaire (MRPARQ), a modified version of the Adolescent Physical Activity Recall Questionnaire (APARQ). A sub-group (n=86) wore an accelerometer for seven consecutive days in order to validate the instrument.ResultsPearson and Intra Class Correlation coefficients between the survey and acceleromtery for weekdays only are 0.31 and 0.16, respectively, for Aboriginal and Torres Strait Islander children, and 0.38 and 0.31, respectively, for non-Indigenous children, and demonstrate a modest (p<0.05) correlation. Self-reported MVPA for Aboriginal and Torres Strait Islander children is between 162 and 172 minutes/day, and is 125 minutes by accelerometer; for non-Indigenous children MVPA is between 123 and 149 minutes (survey) and 107 minutes (accelerometer).ConclusionAustralian Aboriginal and Torres Strait Islander children's self-report of physical activity is at least as valid as non-Indigenous children, given culturally appropriate support; they tend to be more active than non-Indigenous children.ImplicationsThe MRPARQ can be administered with Aboriginal and Torres Strait Islander and non-Indigenous children.

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