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Difference in Objectively Measured Physical Activity and Obesity in Children With and Without Siblings

Chelsea L Kracht1, Susan B Sisson1, Emily Hill Guseman2

  • 1The University of Oklahoma Health Sciences Center.

Pediatric Exercise Science
|January 17, 2019
PubMed

Insights

Children without siblings (singletons) show higher obesity rates and less light physical activity (PA) compared to children with siblings (nonsingletons). Sedentary behavior (SB) was higher in singletons, indicating potential differences in early health behaviors.

Area of Science:

  • Pediatric Obesity Research
  • Childhood Health Behaviors
  • Physical Activity and Sedentary Behavior

Background:

  • Singletons exhibit higher obesity rates than nonsingletons.
  • Physical activity (PA) and reduced sedentary behavior (SB) are linked to lower childhood obesity.
  • Understanding these differences is crucial for early intervention strategies.

Purpose of the Study:

  • To compare physical activity (PA) and sedentary behavior (SB) levels between singleton and nonsingleton children.
  • To investigate the relationship between sibling status and childhood obesity.
  • To identify potential behavioral factors contributing to obesity disparities.

Main Methods:

  • Recruited mothers and children aged 5.0-7.9 years (singletons and nonsingletons).
  • Measured child height, weight, and waist circumference; calculated age and sex percentiles.
  • Utilized accelerometry to quantify SB and PA (light, moderate-to-vigorous).

Main Results:

  • Singletons showed significantly higher rates of overweight or obesity (49% vs 17%).
  • Singleton children engaged in less light PA per day (β = -38.1, P = .001).
  • Singleton children exhibited more sedentary behavior (SB) (β = 38.0, P = .02) than nonsingletons.

Conclusions:

  • Singleton children in this sample had higher obesity prevalence and lower light PA.
  • Findings suggest differences in physical activity and sedentary behavior patterns between singletons and nonsingletons.
  • Further research into family dynamics and health behaviors is warranted to understand sibling influence on child development.

Keywords:
epidemiologyhealth behaviorpediatrics

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