Rest-activity rhythms are stronger in Mexican American compared to non-Hispanic White and Black participants: a cross-sectional study.

ABSTRACT:

Study objectives

This study aimed to investigate differences in rest-activity rhythms (RAR), key circadian rhythm markers, across race/ethnicity and sex in a diverse community-based cohort of older adults.

Methods

We examined RAR (amplitude [strength of activity], mesor [level of activity], acrophase [time of peak activity], and pseudo-F [robustness of activity]) derived from the extended cosinor model based on ≥4 24-hour periods of wrist actigraphy among 756 participants (≥50 years) in the Dormir Study. We conducted linear and multinomial logistic regression models adjusted for socioeconomic status, health conditions, and sleep-related factors.

Results

We studied 218 (28.8%) Black, 221 (29.2%) Mexican American (MA), and 317 (42.0%) non-Hispanic White (NHW) participan

SUBMITTER: Cavailles C 

PROVIDER: S-EPMC12696381 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature