Meyer Silvia, Weidmann Rebekka, Grob Alexander
Department of Psychology, University of Basel, Missionsstrasse 62, Basel 4055, Switzerland.
Department of Psychology, University of Basel, Missionsstrasse 62, Basel 4055, Switzerland.
J Sport Health Sci. 2021 Jan;10(1):48-54. doi: 10.1016/j.jshs.2020.01.002. Epub 2020 Jan 22.
The present study aimed to examine the link between physical activity (PA) and life satisfaction in a large international study of adolescents. We also aimed to test whether overweight and underweight perceptions act as mediators and whether age and sex acted as moderators.
For this purpose, we analyzed data from the Health Behavior in School-aged Children study, which comprises 727,865 observations from 44 nations at 4 measurement occasions.
Multilevel analyses revealed a positive link between PA and life satisfaction. In addition, underweight and overweight perceptions mediated the effect of PA on life satisfaction. We further found that age and sex acted as moderators. In older adolescents, stronger effects were found in the links between PA and life satisfaction, PA and overweight perception, and both weight perceptions and life satisfaction. In addition, in female adolescents, the link between overweight perception and life satisfaction was stronger. Conversely, the links between PA and both weight perceptions were stronger for boys.
The results suggest that weight perception explains part of the relationship between PA and life satisfaction in adolescents and that these effects vary as a function of age and sex.
本研究旨在通过一项针对青少年的大型国际研究，探讨身体活动（PA）与生活满意度之间的联系。我们还旨在检验超重和体重不足认知是否起到中介作用，以及年龄和性别是否起到调节作用。
为此，我们分析了学龄儿童健康行为研究的数据，该研究在4个测量时点对来自44个国家的727,865名对象进行了观察。
多层次分析揭示了PA与生活满意度之间存在正向联系。此外，体重不足和超重认知在PA对生活满意度的影响中起到了中介作用。我们还发现年龄和性别起到了调节作用。在年龄较大的青少年中，PA与生活满意度、PA与超重认知以及体重认知与生活满意度之间的联系更为显著。此外，在女性青少年中，超重认知与生活满意度之间的联系更为强烈。相反，PA与两种体重认知之间的联系在男性青少年中更为强烈。
研究结果表明，体重认知解释了青少年PA与生活满意度之间关系的部分原因，并且这些影响因年龄和性别而异。
