Association between accelerometer-measured irregular sleep duration and longitudinal changes in body mass index in older adults.

ABSTRACT:

Background

Irregular sleep duration may disrupt circadian rhythms and contribute to metabolic, behavioral, and mood changes, potentially increasing the risk for obesity. However, quantitative data on the relationship between sleep duration irregularity and weight change are lacking.

Methods

In this prospective study, we analyzed data from 10,572 participants (mean age: 63 years) in the UK Biobank who wore accelerometers for a week between 2013 and 2015 and had two body mass index (BMI; kg/m²) measurements on average 2.5 years apart. Irregular sleep duration was assessed by the within-person standard deviation (SD) of 7-night accelerometer-measured sleep duration.

Results

Participants with sleep duration SD > 60 min versus ≤30 min had 0.24 kg/m² (95% CI: 0.0

SUBMITTER: Kianersi S 

PROVIDER: S-EPMC12286733 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature