“进食时差”或增加肥胖风险
创作:szx 审核:szx 02月05日
  • 纳入1106名18-25岁的受试者,计算“进食时差”(定义为工作日与周末的进食时间变化);
  • 利用多元回归模型分析“进食时差”与BMI及生物钟相关指标(作息类型、睡眠时长、进食时长、假后返工时差等)的关联;
  • “进食时差”与BMI之间呈显著正相关,且独立于作息类型与假后返工时差;
  • 当“进食时差”在3.5小时或以上时,BMI随“进食时差”增加而显著升高。
主编推荐语
szx
进食时间与肥胖等不良代谢结局相关,但工作日与周末的进食时间变化对肥胖的影响尚未明确。来自Nutrients上发表的一项最新研究,对超过1000名年轻受试者,将工作日与周末的进食时间变化定义为“进食时差”,发现“进食时差”与BMI呈显著正相关,提示降低工作日与周末的进食时间差异或可预防肥胖。
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Nutrients [IF:4.546]

Eating Jet Lag: A Marker of the Variability in Meal Timing and Its Association with Body Mass Index

进食时差:进食时间变化与BMI的关联

10.3390/nu11122980

2019-12-09, Article

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The timing of food intake has been associated with obesity and adverse metabolic outcomes, independently of the amount or content of food intake and activity level. However, the impact of the variability in the timing of food intake between weekends and weekdays on BMI (body mass index) remains unexplored. To address that, we propose to study a marker of the variability of meal timing on weekends versus weekdays (denominated as ‘eating jet lag’) that could be associated with increments in BMI. This cross-sectional study included 1106 subjects (aged 18–25 years). Linear regression models were used to examine the associations of eating jet lag with BMI and circadian related variables (including chronotype, eating duration, sleep duration, and social jet lag). Subsequently, a hierarchical multivariate regression analysis was conducted to determine whether the association of eating jet lag with BMI was independent of potentially confounding variables (e.g., chronotype and social jet lag). Moreover, restricted cubic splines were calculated to study the shape of the association between eating jet lag and BMI. Our results revealed a positive association between eating jet lag and BMI (p = 0.008), which was independent of the chronotype and social jet lag. Further analysis revealed the threshold of eating jet lag was of 3.5 h or more, from which the BMI could significantly increase. These results provided evidence of the suitability of the eating jet lag, as a marker of the variability in meal timing between weekends and weekdays, for the study of the influence of meal timing on obesity. In a long run, the reduction of the variability between meal timing on weekends versus weekdays could be included as part of food timing guidelines for the prevention of obesity among general population.

First Authors:
María Fernanda Zerón-Rugerio

Correspondence Authors:
Maria Izquierdo-Pulido

All Authors:
María Fernanda Zerón-Rugerio,Álvaro Hernáez,Armida Patricia Porras-Loaiza,Trinitat Cambras,Maria Izquierdo-Pulido

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Medical Xpress新闻网站

Study links weekend 'eating jet lag' to obesity

2020-01-20

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