title: The mediating role of physical self-concept on relations between biological maturity status and physical activity in adolescent females.
abstract: The current study examined the mediating role of physical self-concept on relations between biological maturity status and self-reported physical activity in adolescent British females. Biological maturity status, physical self-concept and physical activity were assessed in 407 female British year 7-9 pupils (M age = 13.2 years, SD = 1.0). Participants completed the Physical Activity Questionnaire for Adolescents (Kowalski, Crocker, & Donen, 2004) and the Children and Youth Physical Self-Perceptions Profile (Whitehead, 1995). Percentage of predicted adult height attained at measurement was used as an estimate of biological maturity status. Structural equation modelling using maximum likelihood estimation and bootstrapping procedures revealed that perceptions of sports competence, body attractiveness and physical self-worth mediated an inverse relation between maturity status and physical activity. The results provide partial support for Petersen and Taylor's (1980) Mediated Effects Model of Psychological and Behavioural Adaptation to Puberty within the context of physical activity.
authors.affiliation: School for Health, University of Bath, Bath BA2 7AY, UK. S.Cumming@bath.ac.uk
authors.forename: Sean P
authors.initials: SP
authors.lastname: Cumming
authors.forename: Martyn
authors.initials: M
authors.lastname: Standage
authors.forename: Tom
authors.initials: T
authors.lastname: Loney
authors.forename: Catherine
authors.initials: C
authors.lastname: Gammon
authors.forename: Helen
authors.initials: H
authors.lastname: Neville
authors.forename: Lauren B
authors.initials: LB
authors.lastname: Sherar
authors.forename: Robert M
authors.initials: RM
authors.lastname: Malina
mesh_terms: D000293:Adolescent; D001827:Body Height; D001828:Body Image; D002648:Child; D004739:England; D015444:Exercise; D005260:Female; D006801:Humans; D016013:Likelihood Functions; D009043:Motor Activity; D010809:Physical Fitness / Q000523:psychology*; D000297:Psychology, Adolescent; D011627:Puberty / Q000523:psychology*; D012649:Self Concept; D012741:Sexual Maturation; D011795:Surveys and Questionnaires