Letters

Asthma in cross country skiers

BMJ 1994; 308 doi: https://doi.org/10.1136/bmj.308.6923.274a (Published 22 January 1994) Cite this as: BMJ 1994;308:274
  1. R C Pollard,
  2. A J Pollard
  1. Children's Hospital, Birmingham B16 8ET.

    EDITOR, - Kjell Larsson and colleagues described the high prevalence of asthma and increased bronchial responsiveness in cross country skiers in Sweden.1 They attributed their findings to the skiers breathing large volumes of cold air during strenuous exercise. They should, in addition, consider other factors causing bronchoconstriction such as humidity, hypocapnia, and hypoxia.

    Absolute humidity is depressed at reduced …

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