The Role of Self-Efficacy and Friend Support on Adolescent Vigorous Physical Activity

Autor/inn/en	Hamilton, Kyra; Warner, Lisa M.; Schwarzer, Ralf
Titel	The Role of Self-Efficacy and Friend Support on Adolescent Vigorous Physical Activity
Quelle	In: Health Education & Behavior, 44 (2017) 1, S. 175-181 PDF als Volltext Link als defekt meldenVerfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1090-1981
DOI	10.1177/1090198116648266
Schlagwörter	Forschungsbericht; Physical Activity Level; Friendship; Self Efficacy; Peer Influence; Adolescents; Social Theories; Intention; Health Behavior; At Risk Persons; Student Surveys; Gender Differences; Age Differences; Predictor Variables; Foreign Countries; Statistical Analysis; Australia + Suchen Sie Ihr Suchwort? Freundschaft; Self-efficacy; Selbstwirksamkeit; Adolescent; Adolescence; Adoleszenz; Jugend; Jugendalter; Jugendlicher; Gesellschaftstheorie; Health behaviour; Gesundheitsverhalten; Risikogruppe; Schülerbefragung; Geschlechterkonflikt; Age; Difference; Age difference; Altersunterschied; Prädiktor; Ausland; Statistische Analyse; Australien
Abstract	Objectives: Physical activity, including some form of vigorous activity, is a key component of a healthy lifestyle in young people. Self-efficacy and social support have been identified as key determinants of physical activity; however, the mechanism that reflects the interplay of these two factors is not well understood. The aim of the current study was to test social cognitive theory's notion that self-efficacy relates to intention that translates into behavior and to investigate whether friend support and self-efficacy synergize, interfere, or compensate for one another to predict vigorous physical activity in adolescents-a population at risk of rapid decreases in physical activity. Method: A survey at two points in time was conducted in 226 students aged 12 to 16 years. In a conditional process analysis, friend support and physical activity self-efficacy were specified as interacting predictors of intention. The latter was specified as a mediator between self-efficacy and later vigorous physical activity, controlling for sex and age. Results: Self-efficacy emerged as the dominant predictor of intention, followed by friend support, and an interaction between support and self-efficacy. In adolescents with high self-efficacy, intention was independent of support. In those with low self-efficacy, receiving friend support partly compensated for lack of self-efficacy. The effect of self-efficacy on vigorous physical activity was mediated by intention. Conclusions: Adolescent vigorous physical activity was indirectly predicted by self-efficacy via intention, and this mediation was further moderated by levels of friend support, indicating that friend support can partly buffer lack of self-efficacy. (As Provided).
Anmerkungen	SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Begutachtung	Peer reviewed
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01