Centre for Behavioural Research in Cancer, Cancer Council Victoria, Australia.
Health Promot J Austr. 2012 Dec;23(3):213-8. doi: 10.1071/he12213.
To examine the prevalence and socio-demographic distribution of adherence to national dietary and physical activity recommendations among Australian secondary school students.
Cross-sectional survey of 12,188 students in Years 8 to 11 (aged 12-17 years). Students' self-reported eating, physical activity and sedentary behaviours were assessed using validated instruments administered via an online questionnaire.
Less than one-quarter of students (24%) reported meeting the daily requirement of at least four serves of vegetables, while 41% reported consuming the recommended three or more daily serves of fruit. Just 15% of students reported engaging in at least 60 minutes of moderate-to-vigorous activity every day, and only one in five students met the recommendation of spending no more than two hours per day in small screen recreation. Males were performing better than females in terms of fruit intake and physical activity, but worse in relation to frequency of consumption of sugary drinks and fast food, and time spent using electronic media. The proportion of students meeting fruit and vegetable recommendations declined with advancing year level, while lower socio-economic position (SEP) students were faring less well than those from high SEP neighbourhoods, particularly with regards to healthy eating.
There is considerable scope for improving young people's health behaviours in line with national dietary and physical activity recommendations.
研究澳大利亚中学生对国家饮食和体育活动建议的遵守情况及其社会人口分布。
对 12188 名 8 至 11 年级（12-17 岁）学生进行横断面调查。学生通过在线问卷使用经过验证的工具报告他们的饮食、体育活动和久坐行为。
不到四分之一的学生（24%）报告每天至少摄入四份蔬菜，而 41%的学生报告每天食用推荐的三份或更多份水果。只有 15%的学生报告每天至少进行 60 分钟的中等至剧烈活动，只有五分之一的学生符合每天在小屏幕娱乐上花费不超过两小时的建议。就水果摄入量和体育活动而言，男生的表现优于女生，但在含糖饮料和快餐的消费频率以及使用电子媒体的时间方面表现较差。符合水果和蔬菜推荐摄入量的学生比例随着年级的升高而下降，而社会经济地位（SEP）较低的学生的表现远不如来自高 SEP 社区的学生，尤其是在健康饮食方面。
有相当大的空间可以改善年轻人的健康行为，以符合国家饮食和体育活动建议。
