Clark Daniel O, Keith NiCole R, Ofner Susan, Hackett Jason, Li Ruohong, Agarwal Neeta, Tu Wanzhu
Indiana University Center for Aging Research Indianapolis Indiana USA.
Regenstrief Institute, Inc. Indianapolis Indiana USA.
Obes Sci Pract. 2021 Sep 1;8(2):153-163. doi: 10.1002/osp4.557. eCollection 2022 Apr.
One path to improving weight management may be to lessen the self-control burden of physical activity and healthier food choices. Opportunities to lessen the self-control burden might be uncovered by assessing the spatiotemporal experiences of individuals in daily context. This report aims to describe the time, place, and social context of eating and drinking and 6-month weight change among 209 midlife women ( = 113 African-American) with obesity receiving safety-net primary care.
Participants completed baseline and 6-month weight measures, observations and interviews regarding obesogenic cues in the home environment, and up to 12 ecological momentary assessments (EMA) per day for 30 days inquiring about location, social context, and eating and drinking.
Home was the most common location (62%) at times of EMA notifications. Participants reported "yes" to eating or drinking at the time of nearly one in three (31.1% ± 13.2%) EMA notifications. Regarding social situations, being alone was significantly associated with less frequent eating and drinking (OR = 0.75) unless at work in which case being alone was significantly associated with a greater frequency of eating or drinking (OR = 1.43). At work, eating was most common late at night, whereas at home eating was most frequent in the afternoon and evening hours. However, eating and drinking frequency was not associated with 6-month weight change.
Home and work locations, time of day, and whether alone may be important dimensions to consider in the pursuit of more effective weight loss interventions. Opportunities to personalize weight management interventions, whether digital or human, and lessen in-the-moment self-control burden might lie in identifying times and locations most associated with caloric consumption.
Clinical trial registration: NCT03083964 in clinicaltrials.gov.
改善体重管理的一条途径可能是减轻体育活动和选择更健康食物时的自我控制负担。通过评估个体在日常环境中的时空体验,或许能够找到减轻自我控制负担的机会。本报告旨在描述209名患有肥胖症且接受安全网初级保健的中年女性(其中113名为非裔美国人)饮食的时间、地点和社会环境,以及6个月的体重变化情况。
参与者完成了基线和6个月的体重测量,就家庭环境中致胖线索进行了观察和访谈,并在30天内每天进行多达12次的生态瞬时评估(EMA),询问地点、社会环境以及饮食情况。
在EMA通知时,家是最常见的地点(62%)。近三分之一(31.1%±13.2%)的EMA通知时,参与者报告正在饮食。关于社交场合,独处与饮食频率较低显著相关(OR=0.75),除非是在工作时,此时独处与饮食频率较高显著相关(OR=1.43)。在工作时,饮食最常见于深夜,而在家中饮食最频繁的时间是下午和晚上。然而,饮食频率与6个月的体重变化无关。
家庭和工作场所、一天中的时间以及是否独处,可能是寻求更有效减肥干预措施时需要考虑的重要因素。个性化体重管理干预措施(无论是数字化还是人工干预)以及减轻即时自我控制负担的机会,可能在于确定与热量消耗最相关的时间和地点。
临床试验注册:clinicaltrials.gov上的NCT03083964。