title: Identifying combinations of risk and protective factors predicting physical activity change in high school students.
abstract: Research sought to identify combinations of risk and protective factors predicting change in physical activity (PA) over one year in high school students. Adolescents (N = 344; M = 15.7 years) participated in a longitudinal study with assessment of demographics, substance use/smoking exposure, height and weight, psychological factors, and PA in 10th and 11th grade. PA participation in 11th grade was greatest for adolescents who engaged in PA and had high sports competence (78%), and least for adolescents who did not engage in or enjoy PA (13%) in 10th grade. Identifying adolescent subgroups at risk for decreasing PA can inform the development of tailored interventions.
authors.affiliation: Dept. of Preventive Medicine, University of Southern California, Alhambra, CA, USA.
authors.forename: Genevieve Fridlund
authors.initials: GF
authors.lastname: Dunton
authors.forename: Audie A
authors.initials: AA
authors.lastname: Atienza
authors.forename: James
authors.initials: J
authors.lastname: Tscherne
authors.forename: Daniel
authors.initials: D
authors.lastname: Rodriguez
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D000428:Alcohol Drinking; D000704:Analysis of Variance; D015992:Body Mass Index; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009043:Motor Activity; D010549:Personal Satisfaction; D011594:Psychometrics; D018570:Risk Assessment / Q000379:methods*; D012574:Schools; D057185:Sedentary Behavior; D012907:Smoking; D013177:Sports / Q000502:physiology; D013334:Students; D011795:Surveys and Questionnaires