Pulmonary gas exchange is reduced by the cardiovascular diving response in resting humans.
Andersson, Johan LU
; Biasoletto-Tjellström, Gustaf
and Schagatay, Erika K A
(2008)
In Respiratory Physiology & Neurobiology
160(3).
p.320-324
- Abstract
- The diving response reduces the pulmonary O(2) uptake in exercising humans, but it has been debated whether this effect is present at rest. Therefore, respiratory and cardiovascular responses were recorded in 16 resting subjects, performing apnea in air and apnea with face immersion in cold water (10 degrees C). Duration of apneas were predetermined to be identical in both conditions (average: 145s) and based on individual maximal capacity (average: 184s). Compared to apnea in air, an augmented diving response was elicited by apnea with face immersion. The O(2) uptake from the lungs was reduced compared to the resting eupneic control (4.6mlmin(-1)kg(-1)), during apnea in air (3.6mlmin(-1)kg(-1)) and even more so during apnea with face... (More)
- The diving response reduces the pulmonary O(2) uptake in exercising humans, but it has been debated whether this effect is present at rest. Therefore, respiratory and cardiovascular responses were recorded in 16 resting subjects, performing apnea in air and apnea with face immersion in cold water (10 degrees C). Duration of apneas were predetermined to be identical in both conditions (average: 145s) and based on individual maximal capacity (average: 184s). Compared to apnea in air, an augmented diving response was elicited by apnea with face immersion. The O(2) uptake from the lungs was reduced compared to the resting eupneic control (4.6mlmin(-1)kg(-1)), during apnea in air (3.6mlmin(-1)kg(-1)) and even more so during apnea with face immersion (3.4mlmin(-1)kg(-1)). We conclude that the cardiovascular adjustments of the diving response reduces pulmonary gas exchange in resting humans, allowing longer apneas by preserving the lungs' O(2) store for use by vital organs. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1035163
- author
- Andersson, Johan
LU
; Biasoletto-Tjellström, Gustaf
and Schagatay, Erika K A
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Vasoconstriction, Breath hold, Bradycardia, Alveolar gas exchange
- in
- Respiratory Physiology & Neurobiology
- volume
- 160
- issue
- 3
- pages
- 320 - 324
- publisher
- Elsevier
- external identifiers
-
- pmid:18088568
- wos:000254770600010
- scopus:44449100208
- ISSN
- 1878-1519
- DOI
- 10.1016/j.resp.2007.10.016
- language
- English
- LU publication?
- yes
- id
- 703e603a-4b73-419e-8445-e57d88d01b6d (old id 1035163)
- date added to LUP
- 2016-04-01 11:46:32
- date last changed
- 2022-03-05 06:19:26
@article{703e603a-4b73-419e-8445-e57d88d01b6d,
abstract = {{The diving response reduces the pulmonary O(2) uptake in exercising humans, but it has been debated whether this effect is present at rest. Therefore, respiratory and cardiovascular responses were recorded in 16 resting subjects, performing apnea in air and apnea with face immersion in cold water (10 degrees C). Duration of apneas were predetermined to be identical in both conditions (average: 145s) and based on individual maximal capacity (average: 184s). Compared to apnea in air, an augmented diving response was elicited by apnea with face immersion. The O(2) uptake from the lungs was reduced compared to the resting eupneic control (4.6mlmin(-1)kg(-1)), during apnea in air (3.6mlmin(-1)kg(-1)) and even more so during apnea with face immersion (3.4mlmin(-1)kg(-1)). We conclude that the cardiovascular adjustments of the diving response reduces pulmonary gas exchange in resting humans, allowing longer apneas by preserving the lungs' O(2) store for use by vital organs.}},
author = {{Andersson, Johan and Biasoletto-Tjellström, Gustaf and Schagatay, Erika K A}},
issn = {{1878-1519}},
keywords = {{Vasoconstriction; Breath hold; Bradycardia; Alveolar gas exchange}},
language = {{eng}},
number = {{3}},
pages = {{320--324}},
publisher = {{Elsevier}},
series = {{Respiratory Physiology & Neurobiology}},
title = {{Pulmonary gas exchange is reduced by the cardiovascular diving response in resting humans.}},
url = {{http://dx.doi.org/10.1016/j.resp.2007.10.016}},
doi = {{10.1016/j.resp.2007.10.016}},
volume = {{160}},
year = {{2008}},
}