MRC Centre for Environment and Health, Imperial College London, St Mary's Hospital, Praed Street, London W2 1NY, UK.
Department of Environment and Health, Harvard T.H. Chan School of Public Health, Harvard University, Landmark Center, Floor 3 West, 401 Park Drive, Boston, MA 02215, USA.
Int J Environ Res Public Health. 2022 Apr 2;19(7):4247. doi: 10.3390/ijerph19074247.
Urban greenspace provides opportunities for outdoor exercise and may increase physical activity, with accompanying health benefits. Areas suitable for walking (walkability) are also associated with increased physical activity, but interactions with greenspace are poorly understood. We investigated associations of and with physical activity in an urban adult cohort. We used cross-sectional data from Greater London UK Biobank participants ( = 57,726) and assessed along roads and footpaths within 1000 m of their residential addresses. Additionally, we assessed by integrating trees and low-lying vegetation into the walkability index. Physical activity outcomes included self-reported and accelerometer-measured physical activity and active transport. We assessed associations using log-linear, logistic and linear regression models, adjusted for individual- and area-level confounders. Higher was associated with favourable International Physical Activity Questionnaire responses and achievement of weekly UK government physical activity guideline recommendations. Participants living in the highest versus lowest quintile of participated in 2.41 min (95% confidence intervals: 0.22, 4.60) additional minutes of moderate-and-vigorous physical activity per day. Higher and scores were also associated with choosing active transport modes such as walking and cycling. Our approach demonstrates the utility in accounting for walkability and greenspace simultaneously to understand the role of the built environment on physical activity.
城市绿地为户外活动提供了机会，可能会增加身体活动量，从而带来相应的健康益处。适合步行的区域（步行便利性）也与身体活动的增加有关，但绿地与步行便利性之间的相互作用尚不清楚。我们调查了城市成年人群队列中 和 与身体活动的关联。我们使用了来自英国生物银行（UK Biobank）的大伦敦参与者的横断面数据（n = 57726），并评估了距其居住地址 1000 米范围内道路和人行道上的 。此外，我们通过将树木和低矮植被纳入步行便利性指数来评估 。身体活动结果包括自我报告和加速度计测量的身体活动和主动交通。我们使用对数线性、逻辑和线性回归模型评估了关联，调整了个体和区域层面的混杂因素。较高的 与国际体力活动问卷（International Physical Activity Questionnaire）的正面回答以及达到英国政府每周体力活动指南推荐值有关。与居住在 得分最高五分位数的参与者相比，居住在最低五分位数的参与者每天多进行了 2.41 分钟（95%置信区间：0.22，4.60）的中高强度身体活动。较高的 和 分数也与选择步行和骑自行车等主动交通方式有关。我们的综合方法证明了同时考虑步行便利性和绿地来理解建筑环境对身体活动的作用的有效性。
