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Article
January 10, 1977

Asthma and Athletic Performance

JAMA. 1977;237(2):120. doi:10.1001/jama.1977.03270290020017

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Abstract

To the Editor.—  I think the problem of asthmogenicity (236:152, 1976) in the various sports can be solved by looking at the type of breathing in these events. Swimming is done in a prone or supine position, where diaphragmatic breathing is the rule. In addition, expiration is done against resistance.These two factors—diaphragmatic breathing and exhalation against pressure—reduce trapped air and prevent asthma.

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