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Exercise Physiology

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Abstract:

Muscular exercise presents a significant challenge to the lung and gas exchange functions of the respiratory system. The cardiovascular system is thought to be the main limit to maximal exercise performance. The increase in ventilation with exercise is significant, but only in the elderly and highly fit is the pulmonary system a mechanical limit to exercise performance. Although the response in gas exchange is not perfect, the PaO2 remains preserved at the level of rest. As the oxygen delivery fails to meet the metabolic demand of the working muscle, the resultant metabolic acidosis elicits a ventilatory compensation. It is important to remember that the hemostatic and integrative nature of these organ systems can make treating each component as a discreet element very unrealistic and misleading. Muscular exercise remains a superb example of the capacity of the ventilatory/gas exchange systems to adapt to stress.

Document Type: Research Article

DOI: http://dx.doi.org/10.2500/108854196778606356

Publication date: November 1, 1996

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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