title: Colombian Children With Overweight and Obesity Need Additional Motivational Support at School to Perform Health-Enhancing Physical Activity.
abstract: OBJECTIVE
  The aim of this study is to investigate associations of screen-time and physical activity (PA) with self-efficacy for PA, intrinsic motivation to PA and health-related quality of life (HRQoL) in Colombian schoolchildren from socioeconomically disadvantaged neighborhoods, and to compare these variables among children with normal-weight (NW), overweight (OW) and obesity (OB).
  
  
  METHODS
  In 678 schoolchildren (age 10-14 years) screen-time (TV, video games, computer) and number of days being physically active ≥ 60 minutes were self-reported. Multi-item scales were used to assess self-efficacy to PA and intrinsic motivation to PA. The KIDSCREEN-27 was used to assess HRQoL.
  
  
  RESULTS
  Screen-time was associated with HRQoL in the school/learning environment dimension. Number of days being physically active was associated with self-efficacy for PA, intrinsic motivation for PA and with HRQoL concerning physical well-being, autonomy/parent relation and social support/peers. Group differences were found for days being physically active (OW = 2.8 and OB = 2.7 vs. NW = 3.3) but not for screen-time (NW = 5.0, OW = 4.7 and OB = 5.7 hrs·d-1). OW and OB scored lower on intrinsic motivation to PA than NW (OW = 19.2 and OB = 17.9 versus NW = 20.1). All 3 groups differed in physical well-being scores (NW = 50.3, OW = 48.1, OB = 40.6, P < .001).
  
  
  CONCLUSIONS
  Schoolchildren with overweight and obesity from socioeconomically disadvantaged neighborhoods need additional motivational support to perform health-enhancing PA to experience higher physical well-being.
authors.affiliation: Faculty of Nursing, University of Antioquia, Medellín, Antioquia, Colombia.
authors.forename: Patricia
authors.initials: P
authors.lastname: Olaya Contreras
authors.forename: Myriam
authors.initials: M
authors.lastname: Bastidas
authors.forename: Daniel
authors.initials: D
authors.lastname: Arvidsson
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D002648:Child; D003105:Colombia; D003430:Cross-Sectional Studies; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D009042:Motivation; D009043:Motor Activity; D009765:Obesity / Q000523:psychology*; D050177:Overweight / Q000523:psychology*; D010290:Parents; D011788:Quality of Life; D012111:Residence Characteristics; D012574:Schools; D057185:Sedentary Behavior; D020377:Self Efficacy; D013690:Television