Abstract
Confidence building and experience in physical activity (PA) during adolescence can foster confidence to be active throughout life, despite barriers, providing a larger repertoire of activities in adulthood. Sources of Data In this study, predictors of PA in adulthood, namely time constraint barriers and adolescent PA, were examined. From multiple waves of the United States National Longitudinal Study of Adolescent to Adult Health (Add Health), 4,982 individuals (53.9% males, 46.1% females, Mage = 28.92 years old, range 24.47 - 33.98, SD = 1.78 in Wave IV) were examined. Conclusions Reached. In adulthood, few family obligations, but high screen-time activities, were associated with less PA. Less PA in adolescence was linked to lower PA in adulthood, strengthened further by low to moderate family obligations. Exploratory findings assessed barriers and PA between races and sexes. Implications discuss using findings for individualized plans to increase PA in adolescents and adults.