Nutritional Physiology Research Centre, University of South Australia, Adelaide, South Australia, Australia.
J Sci Med Sport. 2012 Jan;15(1):32-7. doi: 10.1016/j.jsams.2011.05.011. Epub 2011 Jul 13.
While there is consistent evidence that rural adults in Australia are less active than their urban counterparts, studies relating geographical remoteness to activity patterns in Australian adolescents have yielded inconsistent results. The aim of this study was to describe objectively and subjectively measured patterns of physical activity and sedentary behaviours across remoteness categories in a representative sample of 9-16 year old Australians.
Cross-sectional observational study.
2071 Australian adolescents provided self-report use of time data on four days and wore a pedometer for at least 6 days within the 2007 Australian National Children's Nutrition and Physical Activity Survey. Comparisons of activity patterns were made across four objectively-determined remoteness categories (Major City, Inner Regional, Outer Regional and Remote), adjusting for household income, parental education and age.
Adolescents living in major cities self-reported 11-29 min less moderate to vigorous physical activity each day than their counterparts living in geographically more remote areas, and took 150-850 fewer steps each day. While there were no differences in time spent in sport or active transport, differences in free play participation were significant. Males in major cities also reported higher levels of screen time. Differences were somewhat more marked among males than among females.
Activity levels among Australian adolescents show contrasting patterns of geographical differences to those found in Australian adults. Higher levels of free play among rural Australian adolescents may be due to more available space and less fear of traffic and stranger risks.
尽管有一致的证据表明澳大利亚农村成年人的活动量低于城市成年人，但有关地理偏远程度与澳大利亚青少年活动模式之间关系的研究结果却不一致。本研究的目的是描述在具有代表性的 9-16 岁澳大利亚人群中，根据偏远程度类别客观和主观测量的身体活动和久坐行为模式。
横断面观察性研究。
2071 名澳大利亚青少年在 2007 年澳大利亚国家儿童营养和身体活动调查中，连续四天提供了他们的时间使用情况的自我报告数据，并在至少六天内佩戴计步器。通过四个客观确定的偏远程度类别（主要城市、内城区、外城区和偏远地区）对活动模式进行比较，调整了家庭收入、父母教育程度和年龄的影响。
生活在主要城市的青少年每天自我报告的中等到剧烈身体活动时间比生活在地理位置较偏远地区的同龄人少 11-29 分钟，每天少走 150-850 步。虽然在运动或积极交通中花费的时间没有差异，但自由玩耍的参与度存在显著差异。主要城市的男性也报告了更高水平的屏幕时间。男性之间的差异比女性之间更为明显。
澳大利亚青少年的活动水平与澳大利亚成年人的地理差异模式相反。农村澳大利亚青少年自由玩耍水平较高，可能是因为有更多的可用空间，并且对交通和陌生人的风险的担忧较少。
