OBJECTIVES: To assess the effectiveness of a positive youth development (PYD)-based sports mentorship program on the physical and mental well-being of adolescents recruited in a community setting. METHODS: This is a randomized controlled trial in which we recruited students from 12 secondary schools in Hong Kong, China. Participants were randomly assigned in a 1:1 ratio to an intervention or a control arm after stratification for school from October 2013 to June 2014. Participants were not blinded to allocation because of the nature of the intervention. Students in the intervention arm received an after-school, PYD-based sports mentorship for 18 weeks. Each weekly session lasted 90 minutes. Students in the control arm received exclusive access to a health education Web site. RESULTS: Six hundred and sixty-four students (mean age 12.3 years [SD 0.76]; 386 girls [58.1%]) completed baseline and postintervention assessments. The intervention improved studentsa?? mental well-being (Cohena??s d , 0.25; 95% confidence interval [CI], 0.10 to 0.40; P = .001), self-efficacy (Cohena??s d , 0.22; 95% CI, 0.07 to 0.37; P = .01), resilience (Cohena??s d , 0.19; 95% CI, 0.03 to 0.34; P = .02), physical fitness (flexibility [Cohena??s d , 0.28; 95% CI, 0.13 to 0.43; P = .02], lower limb muscle strength [Cohena??s d , 0.18; 95% CI, 0.03 to 0.33; P = .03], and dynamic balance [Cohena??s d , 0.21; 95% CI, 0.06 to 0.37; P = .01]), and physical activity levels (Cohena??s d , 0.39; 95% CI, 0.24 to 0.55; P .0001). The intervention did not significantly improve physical well-being (Cohena??s d , a??0.01; 95% CI, a??0.17 to 0.14; P = .86), BMI z scores (Cohena??s d , a??0.03; 95% CI, a??0.18 to 0.12; P = .69), body fat proportion (Cohena??s d , a??0.15; 95% CI, a??0.31 to 0.00; P = .051), and social connectedness (Cohena??s d , a??0.03; 95% CI, a??0.18 to 0.12; P = .72). CONCLUSIONS: A PYD-based sports mentorship intervention improved healthy adolescentsa?? mental well-being, psychological assets, physical fitness, and physical activity levels.
展开▼
机译：目标：评估基于积极的青年发展（PYD）的体育指导计划对在社区中招募的青少年的身心健康的有效性。方法：这是一项随机对照试验，我们从中国香港的12所中学招募了学生。从2013年10月至2014年6月，分层分层后将参与者按1：1的比例随机分配到干预措施或对照组。由于干预的性质，参与者没有盲目地分配。干预部门的学生接受了基于PYD的课后运动指导，为期18周。每周的会议持续90分钟。控制部门的学生可以独家访问健康教育网站。结果：664名学生（平均年龄12.3岁[SD 0.76]; 386名女孩[58.1％]）完成了基线和干预后评估。干预措施改善了学生a？精神健康（CohenaΔsd，0.25; 95％置信区间[CI]，0.10至0.40; P = .001），自我效能感（CohenaΔsd，0.22; 95％CI，0.07至0.37; P弹性系数（CohenaΔsd，0.19; 95％CI，0.03至0.34; P = .02），身体适应性（柔韧性[CohenaΔsd，0.28; 95％CI，0.13至0.43; P = .02]，下肢肌肉力量[CohenaΔsd，0.18; 95％CI，0.03至0.33; P = .03]和动态平衡[CohenaΔsd，0.21; 95％CI，0.06至0.37; P = 0.01）和身体活动水平（Cohena ?? sd，0.39; 95％CI，0.24至0.55; P <.0001）。干预措施并未显着改善身体健康状况（CohenaΔsd，a ?? 0.01; 95％CI，a ?? 0.17至0.14; P = 0.86），BMI z得分（CohenaΔsd，a ?? 0.01）。 0.03; 95％CI，a ?? 0.18至0.12; P = .69），体脂肪比例（Cohena ?? sd，a ?? 0.15; 95％CI，a ?? 0.31至0.00; P = .051），与社会联系（CohenaΔsd，a ?? 0.03; 95％CI，a ?? 0.18至0.12; P = 0.72）。结论：基于PYD的运动指导干预改善了健康的青少年期？心理健康，心理资产，身体素质和体育活动水平。
展开▼
