title: Norwegian adolescents with asthma are physical active and fit.
abstract: BACKGROUND
  Evidence regarding habitual physical activity levels and aerobic fitness of asthmatic compared to nonasthmatic children and adolescents is contradictory, and it is unclear if low physical activity levels can contribute to asthma development. The present study therefore aimed to determine whether adolescents with asthma have reduced physical activity levels and aerobic fitness, or increased energy intake and body fat compared to controls.
  
  
  METHODS
  From the environment and childhood asthma study in Oslo, 174 (13- to 14-year old) adolescents, 95 (66 boys) with and 79 (41 boys) without asthma performed maximal running on a treadmill with oxygen consumption measurement (aerobic fitness) and had the sum of four skinfolds and waist circumference recorded (body fat), followed by wearing an activity monitor and registering diet for four consecutive days. Asthma was defined by at least two of the following three criteria fulfilled: (1) dyspnoea, chest tightness and/or wheezing; (2) a doctor's diagnosis of asthma; (3) use of asthma medication. Participants with asthma used their regular medications.
  
  
  RESULTS
  Neither aerobic fitness, total energy expenditure nor hours in moderate to very vigorous intensity physical activity during week and weekend differed between adolescents with and without asthma. Energy intake and body fat was similar in both groups.
  
  
  CONCLUSIONS
  Total energy expenditure, aerobic fitness and hours in moderate to very vigorous intensity physical activity were not reduced and energy intake and body fat measured with skinfolds not increased among Norwegian adolescents with asthma.
authors.affiliation: Department of Paediatrics, Woman-Child Division, Ullevål University Hospital, Oslo, Norway.
authors.forename: S
authors.initials: S
authors.lastname: Berntsen
authors.forename: K C L
authors.initials: KC
authors.lastname: Carlsen
authors.forename: S A
authors.initials: SA
authors.lastname: Anderssen
authors.forename: P
authors.initials: P
authors.lastname: Mowinckel
authors.forename: R
authors.initials: R
authors.lastname: Hageberg
authors.forename: A K
authors.initials: AK
authors.lastname: Bueso
authors.forename: K-H
authors.initials: KH
authors.lastname: Carlsen
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000503:physiopathology*; D001835:Body Weight; D016022:Case-Control Studies; D004032:Diet; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology; D009664:Norway; D010809:Physical Fitness / Q000502:physiology*; D012129:Respiratory Function Tests; D055105:Waist Circumference