Health Promotion Research, Copenhagen University Hospital - Steno Diabetes Center Copenhagen, Borgmester Ib Juuls Vej 83, 2730, Herlev, Denmark.
Department of Food and Resource Economics, University of Copenhagen, Rolighedsvej 23, 1958, Frederiksberg, Denmark.
BMC Public Health. 2022 Sep 10;22(1):1718. doi: 10.1186/s12889-022-13856-9.
Time-restricted eating (TRE) has been suggested as a feasible dietary strategy in individuals with overweight. Disruptions in daily life e.g., severe illness can affect engagement in lifestyle interventions to obtain healthier body weight. This study examined if and how the engagement with TRE among people with overweight was affected by the Danish COVID-19 lockdowns as an example of disruptions in daily life.
Fifteen participants with overweight enrolled in a TRE intervention, i.e. restricting all eating and drinking except water to the same daily ten-hour window, were interviewed about their experiences and engagement with TRE during COVID-19 lockdowns. Interviews were semi-structured and conducted by phone or face-to-face with safe social distancing. Data analysis was grounded in a reflexive thematic analysis approach.
Daily life rhythms were disrupted by lockdowns by preventing participants from performing ordinary daily activities such as going to work, socialising, eating out or exercising. For some, this challenged their TRE engagement, while most were able to undertake the TRE eating window but reported increased snacking and consumption of take-away food within their eating window. For all, exercise habits became unhealthier. The negative impact on TRE engagement primarily occurred during daytime, as social distancing made it easier to engage with TRE during evenings.
This study showed that even people highly motivated to obtain healthier lifestyles practices struggled to maintain engagement with healthy behaviours, whereas sticking to the TRE window was manageable during COVID-19. TRE as a weight loss strategy was challenged which calls for more attention to supporting people in daily life to obtain healthier practices, also in case of periods of other disruptions such as divorce, serious illness etc.
限时进食 (TRE) 已被提议作为超重人群可行的饮食策略。日常生活的干扰,例如严重疾病,可能会影响参与生活方式干预以获得更健康的体重。本研究以丹麦 COVID-19 封锁为例,探讨了超重人群对 TRE 的参与情况是否以及如何受到日常生活干扰的影响。
15 名超重参与者参加了 TRE 干预,即限制所有进食和饮水除水外只能在每天 10 小时的窗口内进行,他们接受了有关在 COVID-19 封锁期间的 TRE 体验和参与情况的采访。采访是半结构化的,通过电话或面对面进行,并保持安全的社交距离。数据分析基于反思性主题分析方法。
封锁扰乱了日常生活节奏,使参与者无法进行正常的日常活动,如上班、社交、外出就餐或锻炼。对一些人来说,这对他们的 TRE 参与构成了挑战,而大多数人能够在 TRE 进食窗口内进食,但报告说在进食窗口内增加了零食和外卖食品的消费。所有人的运动习惯变得更不健康。对 TRE 参与的负面影响主要发生在白天,因为社交距离使夜间更容易参与 TRE。
本研究表明,即使是那些非常有动力获得更健康生活方式的人,也难以保持对健康行为的参与,而坚持 TRE 窗口在 COVID-19 期间是可以管理的。TRE 作为一种减肥策略受到了挑战,这需要更多关注支持人们在日常生活中获得更健康的习惯,即使在其他干扰时期,如离婚、重病等。