查看文章

Background:The moderating effect of physical activity (PA) on relations between chronic stress and adiposity is unknown in youth.Purpose: The objective is to assess the mediating effect of PA on relations between stress and adiposity in youth.Methods: Participants were 303 youths (47% Black,53%White,50%male, M age = 16.6 years). The Adolescent Resource Challenge Scale assessed personal stress, whereas median rent or mortgage in the neighborhood reflected community stress. Body mass index (BMI) and sum of skinfolds reflected general adiposity, and waist circumference measured central adiposity. Days per week performing PA sufficient to work up a sweat measured PA.Results: Hierarchical regressions predicted each adiposity measure adjusting for age, race, gender, family socioeconomic status, and parental smoking. Independent contributions of personal stress, but not …