Objective: To explore the association of insulin resistance (IR) with direct measures of physical activity (PA).
Research methods and procedures: A school-based, cross-sectional study was conducted in two remote British Columbia coastal First Nations villages. 74 healthy boys and girls (mean = 11.8yrs ± 2.2; range = 8.8-18.5yrs) volunteered to participate. PA was measured with the ActiGraph accelerometer. IR was determined using the homeostasis model assessment of insulin resistance (HOMA-IR). Body mass index standardized for age and sex (zBMI) and waist circumference were used to assess total and central adiposity.
Results: From the 39 participants with complete data sets, moderate to vigorous intensity physical activity (MVPA) was inversely related to HOMA-IR (r = -.45, p<0.01) while total and central adiposity were directly related (r= .44, p<.01 and r=.35, p<.05, respectively).
Discussion: These data provide evidence of the important role of PA, particularly MVPA, in improving IR and potentially preventing type 2 diabetes in First Nations youth.
| Identifer | oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/939 |
| Date | 05 May 2008 |
| Creators | Mitchell, Marc S. |
| Contributors | Gaul, Kathy |
| Source Sets | University of Victoria |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Rights | Available to the World Wide Web |
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