Scully Maree, Dixon Helen, White Victoria, Beckmann Kerri
Centre for Behavioural Research in Cancer, The Cancer Council Victoria, 1 Rathdowne Street, Carlton, Victoria 3053, Australia.
Health Promot Int. 2007 Sep;22(3):236-45. doi: 10.1093/heapro/dam021. Epub 2007 Aug 10.
The aim of this study was to provide a current assessment of Australian secondary students' self-reported dietary, physical activity and sedentary behaviour. This study also examined the relationship between television viewing and students' dietary behaviour. Data are from a cross-sectional survey of 18 486 secondary students in 2005 from all Australian states except Western Australia. Participants reported their usual daily consumption (number of serves) of vegetables and fruit; their weekly consumption of unhealthy/non-core foods including fast food meals, snack foods and high-energy drinks; their engagement in moderate-vigorous physical activity over the previous week; and hours spent using electronic media for entertainment and doing homework on school days. The study found that 20% of students were meeting the daily requirement of four serves of vegetables, whereas 39% were eating the recommended three daily serves of fruit. Consumption of unhealthy/non-core foods was high, with 46% of students having fast food meals at least twice a week, 51% eating snack foods four or more times per week and 44% having high-energy drinks four or more times per week. Fourteen per cent of students engaged in recommended levels of physical activity and 29% engaged in recommended levels of sedentary behaviour. Age and gender differences occurred for most measures, and there were some socio-economic status differences. Heavier television use was associated with lower consumption of fruit and higher consumption of unhealthy/non-core foods. On the basis of the results of this study, it appears that a significant proportion of Australian secondary students fall short of current, national dietary and physical activity recommendations for teenagers. Continual monitoring of these behaviours is essential to help inform research and policy and identify where future efforts should be directed.
本研究旨在对澳大利亚中学生自我报告的饮食、身体活动和久坐行为进行当前评估。本研究还考察了看电视与学生饮食行为之间的关系。数据来自2005年对除西澳大利亚州外所有澳大利亚州的18486名中学生进行的横断面调查。参与者报告了他们日常蔬菜和水果的通常摄入量（份数）；他们每周不健康/非核心食物的摄入量，包括快餐、零食和高能量饮料；他们前一周进行中等强度至剧烈身体活动的情况；以及在上学日使用电子媒体娱乐和做作业的时长。研究发现，20%的学生达到了每日四份蔬菜的要求，而39%的学生摄入了建议的每日三份水果。不健康/非核心食物的摄入量很高，46%的学生每周至少吃两次快餐，51%的学生每周吃四次或更多次零食，44%的学生每周喝四次或更多次高能量饮料。14%的学生进行了建议水平的身体活动，29%的学生有建议水平的久坐行为。大多数指标存在年龄和性别差异，也存在一些社会经济地位差异。看电视时间越长，水果摄入量越低，不健康/非核心食物摄入量越高。根据本研究结果，似乎很大一部分澳大利亚中学生未达到目前国家对青少年的饮食和身体活动建议。持续监测这些行为对于为研究和政策提供信息以及确定未来努力方向至关重要。
