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Predictors of Physical Fitness among Southwestern Native American Adolescents at Risk for Diabetes.

The prevalence of obesity is increasing among children nationally. Native American children from Zuni Pueblo appear to be at increased risk for obesity, which also increases the risk for the metabolic syndrome, diabetes, and cardiovascular disease. While exercise and physical fitness can prevent or forestall these developments, predictors of physical fitness in this population are unknown. Forty-seven Native American adolescents completed four aspects of the Presidential Fitness Challenge (push-ups, sit-ups, step-ups, and timed walking) during screening for another study, and fitness was empirically summarized with a Presidential Fitness Index. Correlative analyses were subsequently performed to elucidate predictors of fitness. Age was the only independent predictor of the Presidential Fitness Index. Other variables that were not found to be independent predictors included BMI percentile, waist circumference, fat free mass, total body fat, and HDL cholesterol. Among adolescent Southwest Native Americans, older children performed better on the Presidential Fitness Challenge. Additionally, BMI was not found to be an independent predictor of fitness.