The influence of maturation, body size and physical self-perceptions on longitudinal changes in physical activity in adolescent girls

Samantha Fawkner, Joan Henretty, Ann Marie Knowles, Alan Nevill, Ailsa Niven

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    The aim of this study was to adopt a longitudinal design to explore the direct effects of both absolute and relative maturation and changes in body size on physical activity, and explore if, and how, physical self-perceptions might mediate this effect. We recruited 208 girls (11.8 ± 0.4 years) at baseline. Data were collected at three subsequent time points, each 6 months apart. At 18 months, 119 girls remained in the study. At each time point, girls completed the Physical Activity Questionnaire for Children, the Pubertal Development Scale (from which, both a measure of relative and absolute maturation were defined) and the Physical Self-Perception Profile, and had physical size characteristics assessed. Multilevel modelling for physical activity indicated a significant negative effect of age, positive effect for physical condition and sport competence and positive association for relatively early maturers. Absolute maturation, body mass, waist circumference and sum of skinfolds did not significantly contribute to the model. Contrary to common hypotheses, relatively more mature girls may, in fact, be more active than their less mature peers. However, neither changes in absolute maturation nor physical size appear to directly influence changes in physical activity in adolescent girls.

    Original languageEnglish
    Pages (from-to)392-401
    Number of pages10
    JournalJournal of Sports Sciences
    Volume32
    Issue number4
    DOIs
    Publication statusPublished - 2014

    Keywords

    • adolescence
    • girls
    • maturation
    • physical activity

    ASJC Scopus subject areas

    • Orthopedics and Sports Medicine
    • Physical Therapy, Sports Therapy and Rehabilitation

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