Nov 14, 1980

Effectiveness of a portable face mask in attenuating exercise-induced asthma

JAMA : the Journal of the American Medical Association
A M BrennerM L Loren

Abstract

Recent investigations have demonstrated that exercise-induced asthma (EIA) can be prevented by inspiration of warm, fully humidified air during exercise. We evaluated the success of a surgical face mask, used to retain warm, humidified, expired air, in preventing EIA in ten asthmatic children. subjects underwent six minutes of exercise on a treadmill during two sessions, in one session breathing room air and in another wearing a mask covering the nose and mouth. On the control day, average group forced expiratory volume in 1 s (FEV1) and maximal midexpiratory flow rate (MMEF) decreased from the preexercise baseline value to 66% and 47% of baseline, respectively, at six minutes; on the mask day, FEV1 and MMEF were 91% and 82% of the baseline values (increased in all subjects). A simple face mask may be an inexpensive, nonpharmacologic alternative for alleviation of EIA.

  • References
  • Citations7

References

  • We're still populating references for this paper, please check back later.
  • References
  • Citations7

Mentioned in this Paper

Asthma, Exercise-Induced
Masks
Bronchospasm, Exercise-Induced
Asthma
Exhaled Air
Maximal Midexpiratory Flow Rate Measurement
Forced Expiratory Volume Procedure
Forced Expiratory Volume Function
Maximal Midexpiratory Flow Rate
Pulmonary Function Test/Forced Expiratory Volume 1

About this Paper

Related Feeds

Asthma

This feed focuses in Asthma in which your airways narrow and swell. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.

Allergy and Asthma

Allergy and asthma are inflammatory disorders that are triggered by the activation of an allergen-specific regulatory t cell. These t cells become activated when allergens are recognized by allergen-presenting cells. Here is the latest research on allergy and asthma.