Asthma and Exercise-Induced Bronchoconstriction in Athletes  

Oleh:

Boulet, Louis-Philippe ; Byrne, Paul M. O

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The New England Journal of Medicine (keterangan: ada di Proquest) vol. 372 no. 07 (Feb. 2015), page 641-648.

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Perpustakaan FK Nomor Panggil: N08.K Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Regular exercise is one of the most effective means to maintain good health. A substantial proportion of the general population engages in competitive sports, including many people with asthma; when controlled, asthma does not restrict exercise performance. Indeed, exercise training can improve asthma symptoms, quality of life, exercise capacity, and pulmonary function, as well as reduce airway responsiveness.1 Intense exercise imposes demands on the cardiorespiratory system. Cardiac output increases, as does minute ventilation, which can reach 200 liters per minute in high-level athletes.2 At high minute ventilations, the airways are the site of intense respiratory heat and water exchange as they condition inspired air to body temperature and humidity levels. Furthermore, because mouth breathing is common during exercise, there is an increased penetration of allergens and pollutants — such as chloramines from chlorinated pools, ozone, and particulate matter from ambient air — into the lower airways. Therefore, it is not surprising that as compared with nonathletes, high-level endurance athletes have an increased prevalence of various respiratory ailments, such as asthma and rhinitis, and related coexisting conditions

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