Sampasa-Kanyinga H, Hamilton H A, Willmore J, Chaput J-P
Ottawa Public Health, Ottawa, Ontario K2G 6J8, Canada; School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada.
Centre for Addiction and Mental Health, Toronto, Ontario M5S 2S1, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario M5T 3M7, Canada.
Public Health. 2017 May;146:75-83. doi: 10.1016/j.puhe.2017.01.002. Epub 2017 Feb 8.
We examined the associations between perceptions and attitudes about body weight and adherence to the physical activity recommendation (PAR) for adolescents to achieve ≥60 min/day of moderate-to-vigorous physical activity and tested whether body mass index (BMI) was a moderator of these relationships.
Cross-sectional survey.
Self-reported data from Canadian adolescents (n = 4299) who participated in the 2013 Ontario Student Drug Use and Health Survey were analysed.
Dissatisfaction with body weight was associated with lower odds of adherence to the PAR (odds ratio [OR]: 0.74; 95% confidence interval [CI]: 0.55-0.99). More specifically, those who perceived themselves as overweight/obese had lower odds of adherence to the PAR (OR: 0.59; 95% CI: 0.42-0.81) compared with those who think they were about the right weight. Those who were trying to gain weight were more likely to adhere to the PAR (OR: 1.92; 95% CI: 1.29-2.86) compared to those who were doing nothing about their body weight. BMI was a significant moderator of the association between dissatisfaction with body weight and adherence to the PAR. At low BMI, there were no differences in the adherence to the PAR between adolescents who were dissatisfied with their body weight or not. At high BMI, adolescents who were dissatisfied with their body weight were less likely to adhere to the PAR than those who were not dissatisfied with their weight. Results were not different between males and females.
Results suggest that adolescents who are dissatisfied with their body weight have lower adherence to the PAR, particularly those who are overweight or obese.
我们研究了青少年对体重的认知与态度和坚持达到每天至少60分钟中等至剧烈身体活动的身体活动建议（PAR）之间的关联，并测试了体重指数（BMI）是否为这些关系的调节因素。
横断面调查。
分析了参与2013年安大略省学生药物使用与健康调查的加拿大青少年（n = 4299）的自我报告数据。
对体重的不满与坚持PAR的较低几率相关（优势比[OR]：0.74；95%置信区间[CI]：0.55 - 0.99）。更具体地说，与认为自己体重合适的青少年相比，那些认为自己超重/肥胖的青少年坚持PAR的几率较低（OR：0.59；95% CI：0.42 - 0.81）。与那些对自己体重无所作为的青少年相比，那些试图增加体重的青少年更有可能坚持PAR（OR：1.92；95% CI：1.29 - 2.86）。BMI是对体重不满与坚持PAR之间关联的显著调节因素。在低BMI水平，对体重不满和未不满的青少年在坚持PAR方面没有差异。在高BMI水平，对体重不满的青少年比体重未不满的青少年更不可能坚持PAR。男性和女性的结果没有差异。
结果表明，对体重不满的青少年坚持PAR的程度较低，尤其是那些超重或肥胖的青少年。
