title: The role of peer social network factors and physical activity in adolescent girls.
abstract: OBJECTIVE
  To study the relationship between peer-related physical activity (PA) social networks and the PA of adolescent girls.
  
  
  METHODS
  Cross-sectional, convenience sample of adolescent girls. Mixed-model linear regression analyses to identify significant correlates of self-reported PA while accounting for correlation of girls in the same school.
  
  
  RESULTS
  Younger girls were more active than older girls. Most activity-related peer social network items were related to PA levels. More PA with friends was significantly related to self-reported PA in multivariate analyses.
  
  
  CONCLUSIONS
  Frequency of PA with friends was an important correlate of PA among the peer network variables for adolescent girls.
authors.affiliation: Department of Public and Community Health, Department of Kinesiology, University of Maryland, College Park, MD 20742, USA. ccv@umd.edu
authors.forename: Carolyn C
authors.initials: CC
authors.lastname: Voorhees
authors.forename: David
authors.initials: D
authors.lastname: Murray
authors.forename: Greg
authors.initials: G
authors.lastname: Welk
authors.forename: Amanda
authors.initials: A
authors.lastname: Birnbaum
authors.forename: Kurt M
authors.initials: KM
authors.lastname: Ribisl
authors.forename: Carolyn C
authors.initials: CC
authors.lastname: Johnson
authors.forename: Karin Allor
authors.initials: KA
authors.lastname: Pfeiffer
authors.forename: Brit
authors.initials: B
authors.lastname: Saksvig
authors.forename: Jared B
authors.initials: JB
authors.lastname: Jobe
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D000367:Age Factors; D003430:Cross-Sectional Studies; D003615:Dancing / Q000502:physiology; D005260:Female; D015438:Health Behavior; D006801:Humans; D009043:Motor Activity / Q000502:physiology*; D015999:Multivariate Analysis; D010379:Peer Group; D010865:Pilot Projects; D012044:Regression Analysis; D012944:Social Support; D013177:Sports / Q000502:physiology; D013334:Students / Q000523:psychology; D011795:Surveys and Questionnaires