title: [Effects of sports and media consumption on the trunk muscle strength, posture and flexibility of the spine in 12- to 14- year-old adolescents].
abstract: BACKGROUND
  Back pain and posture deficits get more common in childhood and adolescents. Lack of movement, insufficient physical education and high amounts of TV and PC are known as risk factors for chronic low back pain in later life.
  
  
  METHODS
  In a cross-sectional study, trunk muscle strength, posture and spinal flexibility were assessed in 200 untrained schoolchildren (117 girls, 83 boys). Independent variables, collected by a standardized questionnaire: age, height, weight, gender, weekly scope of TV, PC and sports (conditional, conditional-coordinative, coordinative).
  
  
  METHODS
  spinal parameter, tested by the Zebris CMS-System and IPN Back Check.
  
  
  RESULTS
  PC and TV-consumption had negative effects on the spinal parameter, whereas esp. conditional-coordinative sports correlated positively.
  
  
  CONCLUSIONS
  For general health and preventive reasons, children need a daily minimum of 30 minutes of movement. Conditional-coordinative sports are suited best because of their multifactorial load.
authors.affiliation: Physioklinik im Aitrachtal, Sporttherapie, Mengkofen, Mitterfels. jens.kuester@t-online.de
authors.forename: M
authors.initials: M
authors.lastname: Küster
mesh_terms: D000005:Abdomen / Q000502:physiology; D000203:Activities of Daily Living / Q000145:classification; D000293:Adolescent; D017677:Age Distribution; D002648:Child; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008297:Male; D008838:Microcomputers / Q000706:statistics & numerical data; D018482:Muscle, Skeletal / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D017678:Sex Distribution; D013131:Spine / Q000502:physiology*; D013177:Sports / Q000502:physiology* / Q000706:statistics & numerical data*; D013690:Television / Q000706:statistics & numerical data