Ventilatory efficiency in athletes, asthma and obesity
| Autor: | Zahrah H Rampuri, Michael K. Stickland, Andrew R Brotto, Devin B. Phillips, Sophie É Collins |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Pulmonary and Respiratory Medicine
medicine.medical_specialty 030204 cardiovascular system & hematology 03 medical and health sciences Diseases of the respiratory system 0302 clinical medicine Internal medicine medicine Humans Respiratory system Exercise Asthma biology RC705-779 business.industry Athletes medicine.disease biology.organism_classification Obesity Obesity Morbid 030228 respiratory system Gas homeostasis Exercise Test Cardiology Arterial blood Maximal exercise business Respiratory minute volume |
| Zdroj: | European Respiratory Review, Vol 30, Iss 161 (2021) |
| ISSN: | 1600-0617 0905-9180 |
| Popis: | During submaximal exercise, minute ventilation (V′E) increases in proportion to metabolic rate (i.e.carbon dioxide production (V′CO2)) to maintain arterial blood gas homeostasis. The ratioV′E/V′CO2, commonly termed ventilatory efficiency, is a useful tool to evaluate exercise responses in healthy individuals and patients with chronic disease. Emerging research has shown abnormal ventilatory responses to exercise (either elevated or bluntedV′E/V′CO2) in some chronic respiratory and cardiovascular conditions. This review will briefly provide an overview of the physiology of ventilatory efficiency, before describing the ventilatory responses to exercise in healthy trained endurance athletes, patients with asthma, and patients with obesity. During submaximal exercise, theV′E/V′CO2response is generally normal in endurance-trained individuals, patients with asthma and patients with obesity. However, in endurance-trained individuals, asthmatics who demonstrate exercise induced-bronchoconstriction, and morbidly obese individuals, theV′E/V′CO2can be blunted at maximal exercise, likely because of mechanical ventilatory constraint. |
| Databáze: | OpenAIRE |
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