Low movement, deep-learned sitting patterns, and sedentary behavior in the International Study of Childhood Obesity, Lifestyle and the Environment (International Study of Childhood Obesity, Lifestyle, and the Environment (ISCOLE))
Authors' conclusion
Using traditional measures of low movement as a surrogate for SB may lead to underestimated or undetected adverse associations between SB and obesity. CHAP-Child allows assessment of sitting posture using hip-worn accelerometers. Ongoing work is needed to understand how low movement and posture are related to one another, as well as their potential health implications.
Study context
- Population
- Children (mean ± SD age 10.4 ± 0.56 years) from 12 countries in ISCOLE wearing an ActiGraph GT3X+ accelerometer on the right hip for approximately one week
- Participants
- 6,103 children12 countries
- Exposure
- Sedentary behavior (SB) derived from accelerometer cut-point (SBmovement) vs CHAP-Child sitting detection (SBposture) vs both combined (SBcombined)
- Outcome
- Associations of SB variables (SB time, mean SB bout duration, SB breaks) with pediatric obesity variables (waist circumference, body fat percentage, BMI z-score)
Methodological detailsmultinational (12 countries), hip-worn accelerometry
- Multinational (12 countries)
- Hip-worn accelerometry
Main finding
As reported in the abstract
Associations of SB variables with obesity, adjusted for MVPA
- SBposture: obesity associations favoring lower mean SB bout duration
- b = 0.251-0.449; all p < 0.001
- SBposture: obesity associations favoring higher SB breaks
- b = −0.005--0.052; all p < 0.001
- Lower total SB unexpectedly related to greater obesity
- b = −0.077--0.649; p from <0.001-0.02
- Number of associations for mean SB bout duration and SB breaks: SBposture
- 5
- Number of associations for mean SB bout duration and SB breaks: SBmovement
- 3
- Number of associations for mean SB bout duration and SB breaks: SBcombined
- 1
Observational data: associations, not effects.
Original publication
Low movement, deep-learned sitting patterns, and sedentary behavior in the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE). Int J Obes (Lond). Published 14 August 2023. doi:10.
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