O'Brien Wesley, Issartel Johann, Belton Sarahjane
School of Education, Sports Studies and Physical Education Department, 2 Lucan Place, Western Road, University College Cork, Cork T12 KX72, Ireland.
Centre of Preventive Medicine, School of Health and Human Performance, Dublin City University, Dublin D09 W6Y4, Ireland.
Sports (Basel). 2018 Jun 23;6(3):57. doi: 10.3390/sports6030057.
It is well established that lack of physical activity and high bouts of sedentary behaviour are now associated with all-cause and cardiovascular mortality. The purpose of this study was to investigate the relationship between physical activity participation, overall screen time and weight status amongst early Irish adolescent youth. Participants were a sample of 169 students: 113 boys (mean age = 12.89 ± 0.34 years) and 56 girls (mean age = 12.87 ± 0.61 years). The data gathered in the present study included physical activity (accelerometry), screen time (self-report) and anthropometric measurements. Overweight and obese participants accumulated significantly more minutes of overall screen time daily compared to their normal-weight counterparts. A correlation between physical activity and daily television viewing was evident among girls. No significant interaction was apparent when examining daily physical activity and overall screen time in the prediction of early adolescents’ body mass index. Results suggest the importance of reducing screen time in the contribution towards a healthier weight status among adolescents. Furthermore, physical activity appears largely unrelated to overall screen time in predicting adolescent weight status, suggesting that these variables may be independent markers of health in youth. The existing relationship for girls between moderate-to-vigorous physical activity and time spent television viewing may be a potential area to consider for future intervention design with adolescent youth.
众所周知，缺乏体育活动和长时间久坐行为现在与全因死亡率和心血管死亡率相关。本研究的目的是调查爱尔兰早期青少年的体育活动参与情况、总体屏幕时间和体重状况之间的关系。参与者为169名学生的样本：113名男孩（平均年龄 = 12.89 ± 0.34岁）和56名女孩（平均年龄 = 12.87 ± 0.61岁）。本研究收集的数据包括体育活动（加速度计测量）、屏幕时间（自我报告）和人体测量数据。超重和肥胖参与者每天积累的总体屏幕时间明显多于体重正常的同龄人。女孩中体育活动与每日看电视时间之间存在明显的相关性。在预测青少年早期体重指数时，检查每日体育活动和总体屏幕时间时未发现明显的交互作用。结果表明，减少屏幕时间对于青少年获得更健康的体重状况具有重要意义。此外，在预测青少年体重状况时，体育活动似乎与总体屏幕时间基本无关，这表明这些变量可能是青少年健康的独立指标。女孩中中等至剧烈体育活动与看电视时间之间的现有关系可能是未来针对青少年进行干预设计时需要考虑的一个潜在领域。
