Carotid body hyperexcitability underlies heat-induced hyperventilation in exercising humans

Author:

Gibbons Travis D.1ORCID,Dempsey Jerome A.2,Thomas Kate N.3ORCID,Ainslie Philip N.1,Wilson Luke C.4ORCID,Stothers Tiarna A. M.5,Campbell Holly A.3,Cotter James D.5

Affiliation:

1. Centre for Heart, Lung and Vascular Health, University of British Columbia-Okanagan, School of Health and Exercise Science, Kelowna, British Columbia, Canada

2. John Rankin Laboratory for Pulmonary Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin

3. Department of Surgical Sciences, University of Otago, Dunedin, New Zealand

4. Department of Medicine, University of Otago, Dunedin, New Zealand

5. School of Physical Education, Sport & Exercise Sciences, University of Otago, Dunedin, New Zealand

Abstract

Physical activity is the most common way humans increase their core temperature, and excess breathing in the heat can limit heat tolerance and performance, and may increase the risk of heat-related injury. Dose-dependent increases in carotid body tonic activity and sensitivity with core heating provide compelling evidence that carotid body hyperexcitability is the primary cause of heat-induced hyperventilation during exercise.

Publisher

American Physiological Society

Subject

Physiology (medical),Physiology

Cited by 7 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Carotid body interoception in health and disease;Autonomic Neuroscience;2024-10

2. Effects of sodium bicarbonate ingestion on ventilatory and cerebrovascular responses in resting heated humans;American Journal of Physiology-Regulatory, Integrative and Comparative Physiology;2024-10-01

3. Hemorheological, cardiorespiratory, and cerebrovascular effects of pentoxifylline following acclimatization to 3,800 m;American Journal of Physiology-Heart and Circulatory Physiology;2024-03-01

4. Effect of acute heat exposure on the pressor response to a voluntary hypoxic apnea;Journal of Applied Physiology;2023-09-01

5. Sodium bicarbonate reduces ventilation without altering core temperature threshold or sensitivity of hyperthermia-induced hyperventilation in exercising humans;American Journal of Physiology-Regulatory, Integrative and Comparative Physiology;2023-05-15

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