title: Mobility Status as a Predictor of Obesity, Physical Activity, and Screen Time Use among Children Aged 5-11 Years in the United States.
abstract: To examine physical activity participation, screen time habits, and the prevalence of overweight/obesity among children in the general population with mobility limitations and those enrolled in special education services.
  
  
  
  An observational, cross-sectional analysis of the 2011-2014 National Health and Nutrition Examination Survey, a representative sample of the US population. Mobility limitations, special education services utilization, proxy-reported physical activity and screen time, and overweight/obesity status were assessed in children aged 5-11 years.
  
  
  
  Boys with mobility limitations were less likely to meet physical activity guidelines (≥60 minutes daily) compared with those with no limitations (58.1% vs 74.4%, adjusted F = 4.61, P = .04). In a logistic regression model, boys with mobility limitations had significantly lower odds (0.42, 95% CI 0.20-0.86) of meeting physical activity guidelines. The prevalence of children meeting screen time recommendations (≤2 hours daily) among those receiving special education services (42.4%) was lower than children not receiving services (53.2%; adjusted F = 8.87, P < .01). In a logistic regression model, children receiving special education services showed a trend toward significantly lower odds (0.74, 95% CI 0.54-1.03, P = .07) of meeting screen time recommendations. No statistically significant differences for overweight/obesity were found.
  
  
  
  Clear differences were present in physical activity between boys with and without mobility limitations. Furthermore, children receiving special education services demonstrated a lower likelihood of meeting screen time recommendations. Children with disabilities may benefit from targeted interventions aimed at increasing physical activity while decreasing screen time.
authors.affiliation: Human Movement Sciences Department, Old Dominion University, Norfolk, VA. Electronic address: pbwilson@odu.edu.
authors.forename: Patrick B
authors.initials: PB
authors.lastname: Wilson
authors.affiliation: Human Movement Sciences Department, Old Dominion University, Norfolk, VA.
authors.forename: Justin A
authors.initials: JA
authors.lastname: Haegele
authors.affiliation: Human Movement Sciences Department, Old Dominion University, Norfolk, VA.
authors.forename: Xihe
authors.initials: X
authors.lastname: Zhu
mesh_terms: D002648:Child; D002675:Child, Preschool; D003201:Computers; D003430:Cross-Sectional Studies; D015444:Exercise; D006801:Humans; D051346:Mobility Limitation; D063766:Pediatric Obesity / Q000453:epidemiology*; D015995:Prevalence; D057185:Sedentary Behavior; D013690:Television; D013997:Time Factors; D014481:United States / Q000453:epidemiology
keywords: epidemiology; exercise; pediatrics; public health