title: Specific types of family support and adolescent non-school physical activity levels.
abstract: In a sample of 291 adolescents (mean age 13 yr), seven psychosocial factors, including family support, were examined in relation to accelerometry-derived physical activity (PA) measured after school and during the weekend. Gender-specific stepwise linear regression analyses determined which combinations of factors explained the variance in nonschool moderate to vigorous PA and nonschool total PA after adjusting for % BF, age, and maturity (p ≤ 0.05). Being praised by a family member and % BF explained 13% of the variance in female nonschool MVPA, while being praised and maturity explained 13% of the variance in nonschool total PA. Having a family member watch him participate, % BF, and age explained 11.5% of the variance in male nonschool MVPA, while having a family member participate with him explained 6.4% of the variance in nonschool total PA. Despite adolescents' growing independence, family support continues to influence PA levels.
authors.affiliation: Dept. of Health and Human Physiology, University of Iowa, Iowa City, IA, USA.
authors.forename: Joanna L
authors.initials: JL
authors.lastname: Morrissey
authors.forename: Phyllis J
authors.initials: PJ
authors.lastname: Wenthe
authors.forename: Elena M
authors.initials: EM
authors.lastname: Letuchy
authors.forename: Steven M
authors.initials: SM
authors.lastname: Levy
authors.forename: Kathleen F
authors.initials: KF
authors.lastname: Janz
mesh_terms: D056044:Actigraphy; D050154:Adiposity; D000293:Adolescent; D000294:Adolescent Behavior / Q000502:physiology / Q000523:psychology*; D002648:Child; D003430:Cross-Sectional Studies; D015444:Exercise / Q000502:physiology / Q000523:psychology*; D005195:Family Relations; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D012737:Sex Factors; D012931:Social Environment; D011795:Surveys and Questionnaires