Ball Kylie, Jeffery Robert W, Crawford David A, Roberts Rebecca J, Salmon Jo, Timperio Anna F
Centre for Physical Activity and Nutrition Research, Deakin University, 221 Burwood Highway, Burwood 3125, Australia.
Prev Med. 2008 Sep;47(3):294-8. doi: 10.1016/j.ypmed.2008.05.001. Epub 2008 May 9.
This study investigated the correspondence between measures of physical activity facilities obtained through self-report and objective audits; and identified the socio-demographic, cognitive and behavioral characteristics of those who perceive their physical activity environment to be less supportive than objective measures indicate.
Self-report surveys were completed by 1540 women recruited from 45 neighborhoods in Melbourne, Australia. Women reported perceived access to physical activity facilities within 2 km from home, and also socio-demographic, cognitive and behavioral factors. Objective data on physical activity facilities within a 2 km pedestrian catchment area around women's homes were sourced.
There was relatively poor agreement between measures of access to physical activity facilities obtained via self-report and objective assessment. Mismatch between perceived and objectively-assessed environments was more common amongst younger and older women, and women of low income, with low self-efficacy for physical activity, who were less active, who reported using fewer facilities and who had lived in the neighborhood for less than 2 years.
Future studies of environmental determinants of physical activity should consider incorporating objective indices of access to facilities, or accounting for the systematic bias that may result from relying on self-report perceptions as an indicator of the actual physical activity environment.
本研究调查了通过自我报告获得的体育活动设施测量结果与客观审计结果之间的对应关系；并确定了那些认为其体育活动环境比客观测量结果显示的支持性更低的人的社会人口统计学、认知和行为特征。
从澳大利亚墨尔本45个社区招募的1540名女性完成了自我报告调查。女性报告了她们认为在家2公里范围内可使用的体育活动设施情况，以及社会人口统计学、认知和行为因素。获取了女性家周围2公里步行范围内体育活动设施的客观数据。
通过自我报告和客观评估获得的体育活动设施使用情况测量结果之间的一致性相对较差。在年轻和年长女性、低收入女性、体育活动自我效能低、活动较少、报告使用设施较少且在该社区居住不到2年的女性中，感知环境与客观评估环境之间的不匹配更为常见。
未来关于体育活动环境决定因素的研究应考虑纳入设施使用的客观指标，或考虑到依赖自我报告感知作为实际体育活动环境指标可能产生的系统偏差。
