Replacing school and out-of-school sedentary behaviors with physical activity and its associations with adiposity in children and adolescents: a compositional isotemporal substitution analysis.
10.1186/s12199-021-00932-6
- Author:
Aleš GÁBA
1
;
Jan DYGRÝN
2
;
Nikola ŠTEFELOVÁ
2
;
Lukáš RUBÍN
2
;
Karel HRON
2
;
Lukáš JAKUBEC
2
Author Information
1. Faculty of Physical Culture, Palacký University Olomouc, třída Míru 117, 779 00, Olomouc, Czech Republic. ales.gaba@upol.cz.
2. Faculty of Physical Culture, Palacký University Olomouc, třída Míru 117, 779 00, Olomouc, Czech Republic.
- Publication Type:Journal Article
- Keywords:
Accelerometry;
Compositional data analysis;
Schools;
Time-use epidemiology
- MeSH:
Accelerometry;
Adiposity;
Adolescent;
Child;
Czech Republic;
Exercise;
Female;
Humans;
Male;
Schools;
Sedentary Behavior
- From:Environmental Health and Preventive Medicine
2021;26(1):16-16
- CountryJapan
- Language:English
-
Abstract:
BACKGROUND:Little is known on how context-specific sedentary behaviors (SB) affect adiposity. This study aimed to investigate compositional associations between context-specific SB and adiposity and estimate the differences in adiposity associated with replacing school and out-of-school SB with physical activity (PA).
METHODS:This study included 336 children and adolescents. Time spent in SB and PA was estimated using multi-day 24-hour raw accelerometer data. SB and PA were specified for school and out-of-school times. Fat mass percentage (FM%) and fat mass index (FMI) were used as adiposity indicators. A compositional isotemporal substitution model was used to estimate differences in adiposity associated with one-to-one reallocations of time from context-specific SB to PA.
RESULTS:Participants spent approximately two thirds of their school and out-of-school time being sedentary. Relative to the remaining 24-h movement behaviors, significant associations between out-of-school SB and adiposity were found in both boys (β
CONCLUSIONS:A reduction of out-of-school SB in favor of light PA should be advocated as an appropriate target for interventions and strategies to prevent childhood obesity.
