Current Opinion in Allergy and Clinical Immunology · 2015 · 76 citations · 24 references
A chronic and intense physical exercise may cause a transient immunodepression with a preferential shift to a Th2 response, associated with abnormalities of the respiratory tract.
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Position statement. Part one: Immune function and exercise.
Michael Gleeson · PubMed · 2011 · 1.1K citations
High prevalence of asthma in cross country skiers.
Kjell Larsson, P Ohlsén, Lars Larsson et al. · BMJ · 1993 · 295 citations · Full text