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
Environmental Health and Preventive Medicine
;
: 16-16, 2021.
Article
in English
| WPRIM
| ID: wpr-880335
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Schools
/
Exercise
/
Czech Republic
/
Adiposity
/
Sedentary Behavior
/
Accelerometry
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
Europa
Language:
English
Journal:
Environmental Health and Preventive Medicine
Year:
2021
Type:
Article
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