title: Walk test and school performance in mouth-breathing children.
abstract: In recent decades, many studies on mouth breathing (MB) have been published; however, little is known about many aspects of this syndrome, including severity, impact on physical and academic performances.
  
  
  OBJECTIVE
  Compare the physical performance in a six minutes walk test (6MWT) and the academic performance of MB and nasal-breathing (NB) children and adolescents.
  
  
  METHODS
  This is a descriptive, cross-sectional, and prospective study with MB and NB children submitted to the 6MWT and scholar performance assessment.
  
  
  RESULTS
  We included 156 children, 87 girls (60 NB and 27 MB) and 69 boys (44 NB and 25 MB). Variables were analyzed during the 6MWT: heart rate (HR), respiratory rate, oxygen saturation, distance walked in six minutes and modified Borg scale. All the variables studied were statistically different between groups NB and MB, with the exception of school performance and HR in 6MWT.
  
  
  CONCLUSIONS
  MB affects physical performance and not the academic performance, we noticed a changed pattern in the 6MWT in the MB group. Since the MBs in our study were classified as non-severe, other studies comparing the academic performance variables and 6MWT are needed to better understand the process of physical and academic performances in MB children.
authors.affiliation: FCM, Unicamp, Brazil.
authors.forename: Ana Paula Dias Vilas
authors.initials: AP
authors.lastname: Boas
authors.forename: Fernando Augusto de Lima
authors.initials: FA
authors.lastname: Marson
authors.forename: Maria Angela Gonçalves de Oliveira
authors.initials: MA
authors.lastname: Ribeiro
authors.forename: Eulália
authors.initials: E
authors.lastname: Sakano
authors.forename: Patricia Blau Margosian
authors.initials: PB
authors.lastname: Conti
authors.forename: Adyléia Dalbo Contrera
authors.initials: AD
authors.lastname: Toro
authors.forename: José Dirceu
authors.initials: JD
authors.lastname: Ribeiro
mesh_terms: D000293:Adolescent; D002648:Child; D003430:Cross-Sectional Studies; D004521:Educational Measurement; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D009058:Mouth Breathing / Q000150:complications / Q000503:physiopathology*; D011446:Prospective Studies; D012720:Severity of Illness Index; D016138:Walking / Q000502:physiology*