Institute of Social and Preventive Medicine, University of Lausanne, , Lausanne, Switzerland.
Arch Dis Child. 2014 Mar;99(3):208-10. doi: 10.1136/archdischild-2013-303729. Epub 2013 Nov 20.
Sport practice is widely encouraged, both in guidelines and in clinical practice, because of its broad range of positive effects on health. However, very limited evidence directly supports this statement among adolescents and the sport duration that we should recommend remains unknown. We aimed to determine sport durations that were associated with poor well-being.
We conducted a survey including 1245 adolescents (16-20 years) from the general Swiss population. Participants were recruited from various settings (sport centres, peers of sport practicing adolescents, websites) and asked to complete a web-based questionnaire. Weekly sport practice was categorised into four groups: low (0-3.5 h), average (≈ recommended 7 h (3.6-10.5)), high (≈14 h (10.6-17.5)) and very high (>17.5 h). We assessed well-being using the WHO-5 Well-Being Index.
Compared with adolescents in the average group, those in the very high group had a higher risk of poor well-being (OR 2.29 (95% CI 1.11 to 4.72)), as did those in the low group (OR 2.33 (1.58 to 3.44)). In contrast, those in the high group had a lower risk of poor well-being than those in the average group (OR 0.46 (0.23 to 0.93)).
We found an inverted, U-shaped relationship between weekly sport practice duration and well-being among adolescents. The peak scores of well-being were around 14 h per week of sport practice, corresponding to twice the recommended 7 h. Practicing higher sport durations was an independent risk factor of poor well-being.
运动在指南和临床实践中都被广泛提倡，因为它对健康有广泛的积极影响。然而，在青少年中，很少有证据直接支持这一说法，我们推荐的运动持续时间也不清楚。我们旨在确定与不良健康状况相关的运动持续时间。
我们进行了一项调查，包括来自瑞士普通人群的 1245 名青少年（16-20 岁）。参与者来自各种环境（运动中心、运动青少年的同龄人、网站），并被要求完成在线问卷。每周的运动实践分为四组：低（0-3.5 小时）、平均（≈推荐 7 小时（3.6-10.5））、高（≈14 小时（10.6-17.5））和非常高（>17.5 小时）。我们使用世界卫生组织-5 项幸福感指数评估幸福感。
与平均组的青少年相比，非常高组的青少年幸福感较差的风险更高（OR 2.29（95%CI 1.11-4.72）），低组的青少年也是如此（OR 2.33（1.58-3.44））。相比之下，高组青少年的幸福感较差的风险低于平均组（OR 0.46（0.23-0.93））。
我们发现，每周运动实践持续时间与青少年的幸福感之间存在一种倒 U 形关系。幸福感的峰值得分约为每周运动 14 小时，相当于推荐的 7 小时的两倍。进行更高的运动持续时间是幸福感较差的独立危险因素。
