PMID: 3383660Jul 1, 1988Paper

Effect of dry warm air on respiratory water loss in children with exercise-induced asthma

Chest
Z TabkaH Guenard

Abstract

The variation in respiratory water loss (RWL) over time, expressed as the mass of water vapor lost per liter (body temperature and pressure, saturated) of ventilation (MH2O), was investigated in two groups: (1) children with exercise-induced asthma; and (2) healthy children. Children were matched for age and sex and went without medication for at least 12 hours before each experiment. The children breathed dry warm air (TI = 28.4 degrees C +/- 0.3 degree C) for 15 minutes while bicycling at constant and moderate work load (50 W). The MH2O was measured by collecting and weighing the expired water vapor (1) at rest breathing in warm conditions of inspired gas (control values), (2) every five minutes during exercise while breathing dry warm air, and (3) four minutes after the end of exercise. Pulmonary function tests were performed before and six minutes after exercise. The results were abnormal only in children with exercise-induced asthma. During exercise, RWL significantly fell (compared to control value) at the tenth and 15th minute in both groups. Whereas normal subjects recovered their initial values for MH2O four minutes after stopping exercise, asthmatic children still had a reduction in respiratory water loss. During exer...Continue Reading

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Citations

Apr 1, 1990·Thorax·P T ByeC E Sullivan
Sep 1, 1992·Thorax·S D Anderson, E Daviskas
Jan 27, 1999·Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology·F SanoC K Naspitz
Jul 9, 2013·Immunology and Allergy Clinics of North America·Janneke C van LeeuwenBernard J Thio
Apr 30, 2013·Annals of Allergy, Asthma & Immunology : Official Publication of the American College of Allergy, Asthma, & Immunology·Thanai Pongdee, James T Li
Jan 5, 2011·Annals of Allergy, Asthma & Immunology : Official Publication of the American College of Allergy, Asthma, & Immunology·John M WeilerUNKNOWN Joint Council of Allergy, Asthma and Immunology
Oct 9, 2015·Asian Journal of Sports Medicine·Moez TrikiZouhair Tabka
Sep 26, 2016·The Journal of Allergy and Clinical Immunology·John M WeilerDana Wallace
Jan 1, 1991·Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research·G W LaubL B McGrath

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