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Ventilatory efficiency in athletes, asthma and obesity
European Respiratory Review ( IF 7.5 ) Pub Date : 2021-07-20 , DOI: 10.1183/16000617.0206-2020
Sophie É Collins 1, 2 , Devin B Phillips 3 , Andrew R Brotto 1 , Zahrah H Rampuri 1, 2 , Michael K Stickland 1, 4
Affiliation  

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 ratio V'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 blunted V'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, the V'E/V'CO2 response 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, the V'E/V'CO2 can be blunted at maximal exercise, likely because of mechanical ventilatory constraint.



中文翻译:

运动员、哮喘和肥胖的通气效率

在次极量运动期间,每分钟通气量 ( V' E ) 与代谢率(二氧化碳生成量 ( V' CO 2 ))成比例增加,以维持动脉血气稳态。V' E / V' CO 2比率,通常称为通气效率,是评估健康个体和慢性病患者运动反应的有用工具。新出现的研究表明对运动的异常通气反应(升高或减弱的 V' E / V' CO 2) 在某些慢性呼吸道和心血管疾病中。本综述将简要概述通气效率的生理学,然后描述健康训练的耐力运动员、哮喘患者和肥胖患者对运动的通气反应。在次极量运动期间,V' E / V' CO 2反应在接受过耐力训练的个体、哮喘患者和肥胖患者中通常是正常的。然而,在受过耐力训练的个体、表现出运动诱发支气管收缩的哮喘患者和病态肥胖个体中,V' E / V' CO 2可以在最大运动时变钝,可能是因为机械通气限制。

更新日期:2021-07-21
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