Comparison and predicted equation of energy expenditure during walking or running among Caucasians, African Americans and Asians
Xi Jin, Teresa Carithers, Mark Loftin
Comparison and predicted equation of energy expenditure during walking or running among Caucasians, African Americans and Asians
Knowledge of measured energy expenditure (EE) during walking and running is important for exercise prescription. Further, research on the EE comparison and EE predicted equation during walking or running among different ethnicities is limited. The purpose of the current study was to compare EE to walk or run 1 mile in Caucasian, African American and Asian adults and to develop a regression equation to predict EE to walk or run 1 mile. Two hundred and twenty-four participants were included (71 Caucasians, 68 African Americans and 85 Asians) with 3 groups (normal weight walking, overweight walking and running). EE was measured via indirect calorimetry. Analysis of variance was used to compare EE across groups. Multiple regression analysis was employed for EE prediction, and the prediction equation was cross-validated. A significant EE difference was found between walking and running among three ethnicities. The prediction equation was: EE = 0.978 Body Weight - 4.571 Gender (male=1; female=2) + 3.524 Ethnicities (Caucasians=1, African Americans=2, Asians=3) + 32.447 (standard error of estimate=12.5 kcal·mile−1). The equation was valid through cross-validation, so it is recommended to apply for calculating EE during walking or running 1 mile among Caucasians, African Americans and Asians.
Energy expenditure / Predicted equation / Caucasians / African Americans / Asians
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World Health Organization Expert Consultation (WHOE). Appropriate body-mass index for Asian populations and its implications for policy and intervention strategies. Lancet (London, England), 363 (9403) ( 2004), pp. 157-163
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This research was supported by the Department of Health, Exercise Science and Recreation Management at The University of Mississippi. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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