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Bronchial hyperresponsiveness (BHR) and physical activity
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We read with interest the recent paper by Shaaban et al1 who report a negative relationship between bronchial hyperresponsiveness (BHR) and physical activity. Several hypotheses are invoked to explain this association, including a suggestion that physical activity reduces bronchial inflammation by altering airway physiology.
Their major hypothesis is that obesity reduces physical activity and that it is this reduction in physical …