Changes in activity spaces, life spaces, and exposures to physical activity-promoting environments among women with overweight or obesity

IF 4.1 2区 医学 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Nana Luo , Jiue-An Yang , Calvin P. Tribby , Sheri J. Hartman , Loki Natarajan , Cheryl Rock , Dorothy D. Sears , Tarik Benmarhnia , Marta M. Jankowska
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引用次数: 0

Abstract

Understanding factors associated with successful adherence and maintenance of weight loss interventions is important to potentially increase efficacy. Activity spaces and environmental exposures are two understudied factors that may be associated with intervention adherence and outcomes. Women with overweight or obesity (n = 498) from two weight loss intervention studies, Reach for Health and Metabolic, Exercise, and Nutrition at University of California San Diego, wore accelerometer and Global Positioning System (GPS) devices for 1 week at baseline and at 6-month follow up. Changes in activity spaces and time spent in three life space domains (Home, Neighborhood, and Beyond Neighborhood) were assessed at the two timepoints for total time and the subset of time in physical activity (PA). Relationships between repeated GPS-measured exposure to PA promoting environments (walkability; recreation; and greenness) were assessed with linear mixed effects models with an interaction between intervention and timepoint. There was no significant change in the average total or PA-related activity space size. There was no significant change in the amount of total time spent in life space domains by intervention group. However, for PA time in life spaces, the Intervention group increased percent of PA time in the Neighborhood (1.49 %–1.71 %; p = 0.011) and Beyond Neighborhood domains (from 5.85 %–6.60 %; p < 0.0001), whereas PA time at Home was not significantly different (p = 0.755). For the mixed effects models with PA-related time, being in the Intervention group was associated with (−0.06, 95 % CI: −0.19, −0.07; p < 0.01) less exposure to walkability and this was attenuated at time 2, compared to controls. Results suggest that PA-focused interventions did not increase the size of participants’ total and PA-related activity spaces but were associated with a higher percent of PA-related time outside of the home. There were not consistent associations between the Intervention group and increased exposure to PA-supportive environments.
超重或肥胖妇女的活动空间、生活空间和暴露于促进体育活动的环境的变化
了解与成功坚持和维持减肥干预措施相关的因素对于潜在地提高疗效非常重要。活动空间和环境暴露是可能与干预依从性和结果相关的两个未被充分研究的因素。超重或肥胖的女性(n = 498)来自两项减肥干预研究,加州大学圣地亚哥分校的健康与代谢,运动和营养研究,在基线和6个月的随访中佩戴加速度计和全球定位系统(GPS)设备1周。在总时间和身体活动时间(PA)的两个时间点上,评估了三个生活空间域(家庭、邻里和邻里之外)的活动空间和时间的变化。重复gps测量暴露于PA促进环境之间的关系(步行性;娱乐;采用干预与时间点相互作用的线性混合效应模型对绿度进行评价。平均总活动空间大小或与pa相关的活动空间大小没有显著变化。干预组在生活空间领域的总时间没有显著变化。然而,对于生活空间中的PA时间,干预组在邻里中的PA时间增加了百分比(1.49% - 1.71%;p = 0.011)和超越邻域(从5.85% - 6.60%;p & lt;0.0001),而在家的PA时间无显著差异(p = 0.755)。对于具有pa相关时间的混合效应模型,在干预组与(- 0.06,95% CI: - 0.19, - 0.07;p & lt;与对照组相比,这在第2次接触时减弱。结果表明,以pa为中心的干预措施并没有增加参与者的总活动空间和与pa相关的活动空间的大小,但却与家庭之外更高比例的pa相关时间相关。干预组与增加暴露于pa支持环境之间没有一致的联系。
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来源期刊
Health & Place
Health & Place PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH-
CiteScore
7.70
自引率
6.20%
发文量
176
审稿时长
29 days
期刊介绍: he journal is an interdisciplinary journal dedicated to the study of all aspects of health and health care in which place or location matters.
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