Exploring the role of sex in the association of late chronotype on cardiorespiratory fitness.

ABSTRACT: Circadian rhythms differ between young adult males and females. For example, males tend to be later chronotypes, preferring later timing of sleep and activity, than females. Likewise, there are sex differences in body composition and cardiorespiratory fitness. Few studies have investigated the association between circadian rhythms, cardiorespiratory fitness, and body composition. We sought to determine whether chronotype and circadian phase were associated with cardiorespiratory fitness, body composition, and anthropometric measures in sedentary males and females. Fifty-nine adults participated in the study. Circadian phase and chronotype were measured using dim light melatonin onset (DLMO) and the Morningness-Eveningness Questionnaire (MEQ) score. We used peak oxygen uptake (VO_2peak<

SUBMITTER: Thomas JM 

PROVIDER: S-EPMC10830391 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature