Table_1_Association between vigorous physical activity and life satisfaction in adolescents.docx

PurposeThe association between overall physical activity (PA) and life satisfaction has been confirmed in adolescents. However, the associations between different forms of PA at various intensities and life satisfaction are under-studied. This study aimed to explore the association between vigorous PA (VPA) and life satisfaction, and whether the associations vary by gender and age.
MethodsUsing data from the Health Behavior in School-aged Children (HSBC) investigation, the research samples of 11- to 15-year-old adolescents were included for further. The information on VPA was collected via two self-reported questions, including frequency per week and hours per week. Life satisfaction was assessed by a ladder of 0–10 scores, with being higher indicating better life satisfaction. Logistic models were carried out to analyse the association between VPA and life satisfaction among adolescents, and results were presented with odd ratio (OR) and associated 95% confidence interval.
ResultsAmong the 214,080 (49.2% male) adolescents studied, both boy and girl participants reporting higher frequency of VPA per week were more likely to be associated with higher life satisfaction (e.g., in boys, VPA for every day: OR = 1.054; in girls: VPA for every day: OR = 1.047). More hours of VPA was also associated with better life satisfaction in adolescents (in overall sample, 7 h or more: OR = 1.178).
ConclusionsIn conclusion, this research provided evidence on the roles of VPA on life satisfaction among adolescents aged 11–15. Considering life satisfaction is regarded as an indicator of adolescents' psychological health development, our study supports and extends the evidence for the importance of VPA in adolescence.

研究背景与目的：既往研究已证实青少年总体身体活动（PA）与生活满意度之间存在关联，但不同强度、不同类型的身体活动与生活满意度的关联仍有待深入探究。本研究旨在探讨剧烈身体活动（VPA）与青少年生活满意度的关联，并分析该关联是否因性别与年龄而异。研究方法：本研究采用学龄儿童健康行为（Health Behavior in School-aged Children, HSBC）调查数据，纳入11至15岁青少年作为研究样本。剧烈身体活动（VPA）相关信息通过两项自我报告问题收集，内容涵盖每周频率与每周时长。生活满意度采用0至10分的阶梯式评分法进行评估，评分越高代表生活满意度越好。本研究采用logistic回归模型分析青少年剧烈身体活动与生活满意度的关联，结果以比值比（OR）及对应95%置信区间呈现。研究结果：本研究共纳入214080名青少年（男性占比49.2%），无论男女，每周剧烈身体活动频率更高的参与者其生活满意度显著更高（例如，男性每日进行剧烈身体活动的OR值为1.054；女性每日进行剧烈身体活动的OR值为1.047）。青少年的剧烈身体活动时长越长，其生活满意度也越好（总样本中，每周剧烈身体活动时长≥7小时的OR值为1.178）。研究结论：综上，本研究为11至15岁青少年群体中剧烈身体活动对生活满意度的作用提供了实证依据。鉴于生活满意度被视为青少年心理健康发展的重要指标，本研究进一步支持并拓展了青少年时期剧烈身体活动重要性的相关证据。