title: The potential link between sugar-sweetened beverage consumption and post-exercise airway narrowing across puberty: a longitudinal cohort study.
abstract: The prevalence of asthma is rising, presenting serious public health challenges. Recent data suggest that sugar-sweetened beverage (SSB) consumption plays a role in asthma aetiology. The purpose of the present study was to determine whether SSB consumption is linked to post-exercise airway narrowing (predictor of asthma development) across puberty.
  
  
  
  Participants completed pulmonary function tests, physical activity and dietary habit questionnaires, and an exercise test to exhaustion.
  
  
  
  Community in Manhattan, Kansas, USA.
  
  
  
  We recruited ten boys and ten girls from an original cohort of forty participants tested in our laboratory approximately 5 years prior. Participants were aged 9·7 (sd 0·9) years at baseline and 14·7 (sd 0·9) years at follow-up.
  
  
  
  Pre-puberty, boys consumed 6·8 (sd 4·8) servings/week and girls consumed 6·9 (sd 3·7) servings/week, while post-puberty boys consumed 11·5 (sd 5·3) servings/week and girls consumed 7·7 (sd 4·3) servings/week. Using Pearson correlation, SSB consumption was not significantly related to post-exercise airway narrowing at pre-puberty (r=-0·35, P=0·130). In linear regression analyses, SSB consumption was significantly related to post-exercise airway narrowing post-puberty before (standardized β=-0·60, P=0·005) but not after (standardized β=-0·33, P=0·211) adjustment for confounders. Change in SSB consumption from pre- to post-puberty was significantly associated with post-exercise airway narrowing post-puberty (r=-0·61, P=0·010) and change in post-exercise airway narrowing from pre- to post-puberty (r=-0·45, P=0·048) when assessed via Pearson correlations.
  
  
  
  These findings suggest a possible link between SSB consumption and asthma development during maturation. Reduced SSB intake may be a possible public health avenue for blunting rising asthma prevalence.
authors.affiliation: 1Department of Human Nutrition,212 Justin Hall,Kansas State University,Manhattan,KS 66506,USA.
authors.forename: Sam R
authors.initials: SR
authors.lastname: Emerson
authors.affiliation: 1Department of Human Nutrition,212 Justin Hall,Kansas State University,Manhattan,KS 66506,USA.
authors.forename: Sara K
authors.initials: SK
authors.lastname: Rosenkranz
authors.affiliation: 1Department of Human Nutrition,212 Justin Hall,Kansas State University,Manhattan,KS 66506,USA.
authors.forename: Richard R
authors.initials: RR
authors.lastname: Rosenkranz
authors.affiliation: 2Department of Kinesiology,Kansas State University,Manhattan,KS,USA.
authors.forename: Stephanie P
authors.initials: SP
authors.lastname: Kurti
authors.affiliation: 2Department of Kinesiology,Kansas State University,Manhattan,KS,USA.
authors.forename: Craig A
authors.initials: CA
authors.lastname: Harms
mesh_terms: D000293:Adolescent; D001250:Asthma, Exercise-Induced / Q000453:epidemiology*; D001628:Beverages; D002648:Child; D015331:Cohort Studies; D000073417:Dietary Sugars; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D064427:Nutritive Sweeteners; D011627:Puberty
chemical_list: D000073417:Dietary Sugars; D064427:Nutritive Sweeteners
keywords: Adolescence; Asthma; Bronchoconstriction; Diet; Sexual maturation; Soft drinks