5 years ago

Physical activity awareness of European adolescents: The HELENA study

Jérémy Vanhelst, Yannis Manios, Alain Duhamel, Anthony Kafatos, Jonatan R. Ruiz, Frédéric Gottrand, Michael Sjöström, Béatrice Mauro, Kurt Widhalm, Stefaan De Henauw, Laurent Béghin

The aim of this study was to assess physical activity (PA) awareness of adolescents and to identify anthropometric and psychosocial factors that can lead to under or overestimation of PA. This study included 2044 adolescents. Participants wore a uniaxial accelerometer for 7 days to measure PA and completed a self-rated questionnaire about PA. Adolescents were classified into four PA awareness subgroups (realistically active, overestimators, underestimators and realistically inactive) according to the self-rated and objective assessment of PA. Characteristics and psychosocial factors of the self-rated physically active groups were compared using bivariate and multivariate mixed logistic regression models. Forty-five percent of adolescents reported their PA levels correctly (34.8% realistically active and 10.1% realistically inactive). Among the 59.4% who were objectively inactive, 82.9% tended to overestimate their PA level. Adolescents who overestimated their PA level were older (P < .05), had more support from mother and a best friend (P < .05) and had higher cardiorespiratory fitness (P < .001) compared with those who were realistically active. A significant number of adolescents believe that they are physically active when they are not. Improving awareness, especially in the high-risk groups identified here, might help to bring about behavioural changes in physically inactive adolescents.

Publisher URL: http://www.tandfonline.com/doi/full/10.1080/02640414.2017.1323116

DOI: 10.1080/02640414.2017.1323116

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