【摘要】 目的：以社会生态理论模型为视角，探索主客观建成环境对城市老年人户外体力活动的影响因素。方法：对南京市32个社区的老年人进行调查，采用三维加速度计测量体力活动，采用问卷调查法对建成环境进行主观评价，并通过地理信息系统（GIS）技术提取客观环境因素，运用SPSS 22.0软件进行统计分析。结果：主观建成环境中商业场所可达性（β=-7.42）、服务场所可达性（β=6.64）、交通量（β=2.87）与轻体力活动有关，商业场所可达性（β=-5.27）、服务场所可达性（β=4.11）、人文景观（β=2.11）、专用设施（β=-2.09）、街道连通性（β=-1.93）与中高强度体力活动有关，商业场所可达性（β=-34 165.63）、服务场所可达性（β=27 800.90）、健身场所可达性（β=11 619.95）与总体力活动有关；客观建成环境中交通站点数（β=-3.09）、街道连通性（β=1.64）、至健身场所距离（β=-0.04）与轻体力活动有关，土地混合利用率（β=3.6）、至健身场所距离（β=-0.02）与中高强度体力活动有关，建筑密度（β=-110 817.2）、土地混合利用率（β=10 235.5）、街道连通性（β=4 113.1）、至健身场所距离（β=-157.8）、人口密度（β=-0.6）与总体力活动有关。结论：主观建成环境和客观建成环境都与老年人户外体力活动存在积极关系。更多还原

【Abstract】 Objective: To explore the influencing factors of subjective and objective built environment on outdoor physical activity of urban elderly people from the perspective of social ecological theory model. Methods:The elderly in 32 communities in Nanjing were investigated. The intensity of physical activity was measured by three-dimensional accelerometer, the built environment was evaluated by questionnaire, and objective environmental factors were extracted by Geographic Information System(GIS) technology. SPSS 22.0 was used for statistical analysis. Results: The order of importance of subjective built environment on light-intensity physical activity(LPA) was accessibility to commercial places( β=-7.42), accessibility to service places( β=6.64), and traffic volume( β=2.87). For moderate-to-vigorous intensity physical activity, the influence of MVPA was the accessibility of business places( β=-5.27), service places( β=4.11), cultural landscape( β=2.11), special facilities( β=-2.09), and street connectivity(β=-1.93). The influence on total physical activity(TPA) was business place( β=-34 165.63), service place( β=27 800.90), fitness place( β=11 619.95); the influence of the objective built environment on LPA was ranked as the number of traffic stations( β=-3.09), street connectivity( β=1.64),distance to the fitness center( β=-0.04), and MVPA was ranked as the mixed utilization rate of land( β=3.6),distance to the fitness center( β=-0.02). The influence on TPA was ranked by building density( β=-110 817.2),land mixed utilization rate( β=10 235.5), street connectivity( β=4 113.1), distance to fitness center( β=-157.8)and population density( β=-0.6). Conclusion: Subjective built environment and objective built environment have positive relationship with outdoor physical activity in the elderly.更多还原