A 24-h activity profile and adiposity among children and adolescents: Does the difference between school and weekend days matter?

David Janda, Aleš Gába*, Ondřej Vencálek, Stuart J. Fairclough, Jan Dygrýn, Lukáš Jakubec, Lukáš Rubín, Adria Muntaner Mas (Editor)

*Corresponding author for this work

Research output: Contribution to journalArticle (journal)peer-review

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Abstract

Background: Twenty-four-hour movement behaviours are gaining attention in the research community. However, no study has addressed how 24-h activity profiles vary between structured and less structured days and whether an unfavourable activity profile is associated with childhood obesity. We aimed to analyse differences between school day and weekend day 24-h activity profiles and their associations with adiposity indicators among children and adolescents. Methods: Participants were 382 children and 338 adolescents who wore wrist accelerometers for 24 hours a day for seven consecutive days. The 24-h activity profile expressed by the average acceleration (AvAcc) and intensity gradient (IG) were estimated from multi-day raw accelerometer data. Adiposity indicators included body mass index (BMI) z-score, fat mass percentage (FM%), fat mass index (FMI), and visceral adipose tissue (VAT). Multiple linear regression of activity profile metrics and adiposity indicators was performed separately for school and weekend days. Results: Weekend days AvAcc and IG were lower compared to school days in both age groups (p
Original languageEnglish
JournalPLoS One
Volume18
Issue number5
Early online date18 May 2023
DOIs
Publication statusE-pub ahead of print - 18 May 2023

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