title: Energy Cost of Children's Structured and Unstructured Games.
abstract: Limited data are available on energy cost of common children's games using measured oxygen consumption.
  
  
  
  Children (10.6 ± 2.9 years; N = 37; 26 male, 9 female) performed a selection of structured (bowling, juggling, obstacle course, relays, active kickball) and unstructured (basketball, catch, tennis, clothespin tag, soccer) activities for 5 to 30 minutes. Resting metabolic rate (RMR) was calculated using Schofield's age- and sex-specific equation. Children wore a portable metabolic unit, which measured expired gases to obtain oxygen consumption (VO2), youth METs (relative VO2/child's calculated RMR), and activity energy expenditure (kcal/kg/min). Descriptive statistics were used to summarize data.
  
  
  
  Relative VO2 ranged from 16.8 ± 4.6 ml/kg/min (bowling) to 32.2 ± 6.8 ml/kg/min (obstacle course). Obstacle course, relays, active kickball, soccer, and clothespin tag elicited vigorous intensity (>6 METs), the remainder elicited moderate intensity (3-6 METs).
  
  
  
  This article contributes energy expenditure data for the update and expansion of the youth compendium.
authors.affiliation: Dept of Kinesiology, Michigan State University.
authors.forename: Kimberly A
authors.initials: KA
authors.lastname: Clevenger
authors.forename: Aubrey J
authors.initials: AJ
authors.lastname: Aubrey
authors.forename: Rebecca W
authors.initials: RW
authors.lastname: Moore
authors.forename: Karissa L
authors.initials: KL
authors.lastname: Peyer
authors.forename: Darijan
authors.initials: D
authors.lastname: Suton
authors.forename: Stewart G
authors.initials: SG
authors.lastname: Trost
authors.forename: Karin A
authors.initials: KA
authors.lastname: Pfeiffer
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D000068957:Games, Recreational / Q000523:psychology*; D006801:Humans; D008297:Male; D010101:Oxygen Consumption