Department of Exercise Science, Public Health Research Center, University of South Carolina, USA.
Department of Exercise Science, Public Health Research Center, University of South Carolina, USA.
J Sci Med Sport. 2020 Apr;23(4):385-389. doi: 10.1016/j.jsams.2019.10.017. Epub 2019 Nov 1.
To examine associations between sport participation, and objectively assessed physical activity and sedentary behavior in youth during the transition from middle school to high school.
Longitudinal study with 2-year follow-up.
Sport participation and accelerometer-measured physical activity and sedentary behavior were assessed in 306 children (122 males, 184 females) when they were in 7th and 9th grades (mean age of 12.5 ± 0.5 years).
Sport participation and physical activity declined from 7th to 9th grade, but total physical activity (d = 0.38, p < 0.0001) and moderate-to-vigorous physical activity (d = 0.26, p = 0.0004) remained higher in sport participants compared to non-participants. In 9th grade, the full sample of sport participants compared to non-participants had higher levels of total physical activity (20.7 min/h vs. 18.5 min/h) and moderate-to-vigorous physical activity (1.8 min/h vs. 1.6 min/h). Sex-specific analysis revealed similar patterns in both females and males. Sedentary behavior remained lower (d = -0.37, p = <0.0001) in the full sample of sport participants compared to non-participants (39.8 min/h vs. 41.7 min/h) in 9th grade. Similar patterns were observed in both females and males.
Children's participation in sport is associated with greater levels of physical activity and lower levels of sedentary behavior during the transition from middle school to high school. Promoting children's participation in sports could be an effective public health strategy to help children meet the current physical activity guideline.
研究青少年从初中到高中过渡期间，参与体育运动与客观评估的身体活动和久坐行为之间的关联。
具有两年随访的纵向研究。
在 7 年级和 9 年级时，对 306 名儿童（122 名男性，184 名女性）进行了运动参与情况以及加速度计测量的身体活动和久坐行为评估（平均年龄为 12.5±0.5 岁）。
从 7 年级到 9 年级，运动参与度和身体活动量下降，但与非参与者相比，运动参与者的总身体活动量（d=0.38，p<0.0001）和中高强度身体活动量（d=0.26，p=0.0004）仍然较高。在 9 年级时，与非参与者相比，所有运动参与者的总身体活动量（20.7 分钟/小时比 18.5 分钟/小时）和中高强度身体活动量（1.8 分钟/小时比 1.6 分钟/小时）更高。在女性和男性中，都存在类似的性别特异性分析模式。在整个运动参与者样本中，与非参与者相比，久坐行为仍较低（d=-0.37，p<0.0001）（9 年级时为 39.8 分钟/小时比 41.7 分钟/小时）。在女性和男性中都观察到了类似的模式。
在从初中到高中的过渡期间，儿童参与运动与更高水平的身体活动和更低水平的久坐行为有关。促进儿童参与体育运动可能是帮助儿童达到当前身体活动指南的有效公共卫生策略。
