Loading…
When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers
Continuous measurements of haemodynamic and oxygenation changes in free living animals remain elusive. However, developments in biomedical technologies may help to fill this knowledge gap. One such technology is continuous-wave near-infrared spectroscopy (CW-NIRS)—a wearable and non-invasive optical...
Saved in:
Published in: | Philosophical transactions of the Royal Society of London. Series B. Biological sciences 2021-08, Vol.376 (1831), p.20200349-20200349 |
---|---|
Main Authors: | , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
cited_by | cdi_FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193 |
---|---|
cites | cdi_FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193 |
container_end_page | 20200349 |
container_issue | 1831 |
container_start_page | 20200349 |
container_title | Philosophical transactions of the Royal Society of London. Series B. Biological sciences |
container_volume | 376 |
creator | McKnight, J. Chris Mulder, Eric Ruesch, Alexander Kainerstorfer, Jana M. Wu, Jingyi Hakimi, Naser Balfour, Steve Bronkhorst, Mathijs Horschig, Jörn M. Pernett, Frank Sato, Katsufumi Hastie, Gordon D. Tyack, Peter Schagatay, Erika |
description | Continuous measurements of haemodynamic and oxygenation changes in free living animals remain elusive. However, developments in biomedical technologies may help to fill this knowledge gap. One such technology is continuous-wave near-infrared spectroscopy (CW-NIRS)—a wearable and non-invasive optical technology. Here, we develop a marinized CW-NIRS system and deploy it on elite competition freedivers to test its capacity to function during deep freediving to 107 m depth. We use the oxyhaemoglobin and deoxyhaemoglobin concentration changes measured with CW-NIRS to monitor cerebral haemodynamic changes and oxygenation, arterial saturation and heart rate. Furthermore, using concentration changes in oxyhaemoglobin engendered by cardiac pulsation, we demonstrate the ability to conduct additional feature exploration of cardiac-dependent haemodynamic changes. Freedivers showed cerebral haemodynamic changes characteristic of apnoeic diving, while some divers also showed considerable elevations in venous blood volumes close to the end of diving. Some freedivers also showed pronounced arterial deoxygenation, the most extreme of which resulted in an arterial saturation of 25%. Freedivers also displayed heart rate changes that were comparable to diving mammals both in magnitude and patterns of change. Finally, changes in cardiac waveform associated with heart rates less than 40 bpm were associated with changes indicative of a reduction in vascular compliance. The success here of CW-NIRS to non-invasively measure a suite of physiological phenomenon in a deep-diving mammal highlights its efficacy as a future physiological monitoring tool for human freedivers as well as free living animals.
This article is part of the theme issue ‘Measuring physiology in free-living animals (Part II)’. |
doi_str_mv | 10.1098/rstb.2020.0349 |
format | article |
fullrecord | <record><control><sourceid>proquest_swepu</sourceid><recordid>TN_cdi_swepub_primary_oai_DiVA_org_miun_42761</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2545987063</sourcerecordid><originalsourceid>FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193</originalsourceid><addsrcrecordid>eNpVkk2LFDEQhoMo7rh69ZyjB3tM0umk40FY1k9Y8OLHMaST6ulId9Im6ZH5T_5IM8wi7Kmg6qn3LYoXoZeU7ClR_ZuUy7BnhJE9abl6hHaUS9owJcljtCNKsKbnrbhCz3L-RQhRneRP0VXLqRQtkzv09-cEAZcJ8LQtJuAhGR_wIULGzh99OLzFW64FBzCp8WFMJoHDeQVbUsw2ridcIl7A5C0BtpCgSszYhAqdcoHFW2xNcj4eTbbbbBJOkNcYcrWomw5gfV1twZSpmeLs7n1xPQNmXwCPCaD2IOXn6Mlo5gwv7us1-v7xw7fbz83d109fbm_uGisYKc2gLB1GQQUZxcA7S7qeOy7J4KiUlFk-KilYLwZmukEpR4GBcWTkznW0p6q9Rs1FN_-BdRv0mvxi0klH4_V7_-NGx3TQi9-C5kwKWvl3F77CCzgLodQfPFh7OAl-0od41D1rJRWsCry6F0jx9wa5VPVsYZ5NgLhlzTreqV4S0VZ0f0FtfX9OMP63oUSfI6HPkdDnSOhzJNp_Xj6u3A</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2545987063</pqid></control><display><type>article</type><title>When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers</title><source>PubMed (Medline)</source><creator>McKnight, J. Chris ; Mulder, Eric ; Ruesch, Alexander ; Kainerstorfer, Jana M. ; Wu, Jingyi ; Hakimi, Naser ; Balfour, Steve ; Bronkhorst, Mathijs ; Horschig, Jörn M. ; Pernett, Frank ; Sato, Katsufumi ; Hastie, Gordon D. ; Tyack, Peter ; Schagatay, Erika</creator><creatorcontrib>McKnight, J. Chris ; Mulder, Eric ; Ruesch, Alexander ; Kainerstorfer, Jana M. ; Wu, Jingyi ; Hakimi, Naser ; Balfour, Steve ; Bronkhorst, Mathijs ; Horschig, Jörn M. ; Pernett, Frank ; Sato, Katsufumi ; Hastie, Gordon D. ; Tyack, Peter ; Schagatay, Erika</creatorcontrib><description>Continuous measurements of haemodynamic and oxygenation changes in free living animals remain elusive. However, developments in biomedical technologies may help to fill this knowledge gap. One such technology is continuous-wave near-infrared spectroscopy (CW-NIRS)—a wearable and non-invasive optical technology. Here, we develop a marinized CW-NIRS system and deploy it on elite competition freedivers to test its capacity to function during deep freediving to 107 m depth. We use the oxyhaemoglobin and deoxyhaemoglobin concentration changes measured with CW-NIRS to monitor cerebral haemodynamic changes and oxygenation, arterial saturation and heart rate. Furthermore, using concentration changes in oxyhaemoglobin engendered by cardiac pulsation, we demonstrate the ability to conduct additional feature exploration of cardiac-dependent haemodynamic changes. Freedivers showed cerebral haemodynamic changes characteristic of apnoeic diving, while some divers also showed considerable elevations in venous blood volumes close to the end of diving. Some freedivers also showed pronounced arterial deoxygenation, the most extreme of which resulted in an arterial saturation of 25%. Freedivers also displayed heart rate changes that were comparable to diving mammals both in magnitude and patterns of change. Finally, changes in cardiac waveform associated with heart rates less than 40 bpm were associated with changes indicative of a reduction in vascular compliance. The success here of CW-NIRS to non-invasively measure a suite of physiological phenomenon in a deep-diving mammal highlights its efficacy as a future physiological monitoring tool for human freedivers as well as free living animals.
This article is part of the theme issue ‘Measuring physiology in free-living animals (Part II)’.</description><identifier>ISSN: 0962-8436</identifier><identifier>ISSN: 1471-2970</identifier><identifier>EISSN: 1471-2970</identifier><identifier>DOI: 10.1098/rstb.2020.0349</identifier><identifier>PMID: 34176327</identifier><language>eng</language><publisher>The Royal Society</publisher><subject>breath-hold diving ; cererbal oxygenation ; diving physiology ; freediving ; near-infrared spectroscopy ; SpO</subject><ispartof>Philosophical transactions of the Royal Society of London. Series B. Biological sciences, 2021-08, Vol.376 (1831), p.20200349-20200349</ispartof><rights>2021 The Author(s) 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193</citedby><cites>FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193</cites><orcidid>0000-0002-3872-4886 ; 0000-0002-9787-6660 ; 0000-0002-9773-2755 ; 0000-0002-8409-4790 ; 0000-0002-0159-431X ; 0000-0002-0410-0303</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8237162/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8237162/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42761$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>McKnight, J. Chris</creatorcontrib><creatorcontrib>Mulder, Eric</creatorcontrib><creatorcontrib>Ruesch, Alexander</creatorcontrib><creatorcontrib>Kainerstorfer, Jana M.</creatorcontrib><creatorcontrib>Wu, Jingyi</creatorcontrib><creatorcontrib>Hakimi, Naser</creatorcontrib><creatorcontrib>Balfour, Steve</creatorcontrib><creatorcontrib>Bronkhorst, Mathijs</creatorcontrib><creatorcontrib>Horschig, Jörn M.</creatorcontrib><creatorcontrib>Pernett, Frank</creatorcontrib><creatorcontrib>Sato, Katsufumi</creatorcontrib><creatorcontrib>Hastie, Gordon D.</creatorcontrib><creatorcontrib>Tyack, Peter</creatorcontrib><creatorcontrib>Schagatay, Erika</creatorcontrib><title>When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers</title><title>Philosophical transactions of the Royal Society of London. Series B. Biological sciences</title><description>Continuous measurements of haemodynamic and oxygenation changes in free living animals remain elusive. However, developments in biomedical technologies may help to fill this knowledge gap. One such technology is continuous-wave near-infrared spectroscopy (CW-NIRS)—a wearable and non-invasive optical technology. Here, we develop a marinized CW-NIRS system and deploy it on elite competition freedivers to test its capacity to function during deep freediving to 107 m depth. We use the oxyhaemoglobin and deoxyhaemoglobin concentration changes measured with CW-NIRS to monitor cerebral haemodynamic changes and oxygenation, arterial saturation and heart rate. Furthermore, using concentration changes in oxyhaemoglobin engendered by cardiac pulsation, we demonstrate the ability to conduct additional feature exploration of cardiac-dependent haemodynamic changes. Freedivers showed cerebral haemodynamic changes characteristic of apnoeic diving, while some divers also showed considerable elevations in venous blood volumes close to the end of diving. Some freedivers also showed pronounced arterial deoxygenation, the most extreme of which resulted in an arterial saturation of 25%. Freedivers also displayed heart rate changes that were comparable to diving mammals both in magnitude and patterns of change. Finally, changes in cardiac waveform associated with heart rates less than 40 bpm were associated with changes indicative of a reduction in vascular compliance. The success here of CW-NIRS to non-invasively measure a suite of physiological phenomenon in a deep-diving mammal highlights its efficacy as a future physiological monitoring tool for human freedivers as well as free living animals.
This article is part of the theme issue ‘Measuring physiology in free-living animals (Part II)’.</description><subject>breath-hold diving</subject><subject>cererbal oxygenation</subject><subject>diving physiology</subject><subject>freediving</subject><subject>near-infrared spectroscopy</subject><subject>SpO</subject><issn>0962-8436</issn><issn>1471-2970</issn><issn>1471-2970</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpVkk2LFDEQhoMo7rh69ZyjB3tM0umk40FY1k9Y8OLHMaST6ulId9Im6ZH5T_5IM8wi7Kmg6qn3LYoXoZeU7ClR_ZuUy7BnhJE9abl6hHaUS9owJcljtCNKsKbnrbhCz3L-RQhRneRP0VXLqRQtkzv09-cEAZcJ8LQtJuAhGR_wIULGzh99OLzFW64FBzCp8WFMJoHDeQVbUsw2ridcIl7A5C0BtpCgSszYhAqdcoHFW2xNcj4eTbbbbBJOkNcYcrWomw5gfV1twZSpmeLs7n1xPQNmXwCPCaD2IOXn6Mlo5gwv7us1-v7xw7fbz83d109fbm_uGisYKc2gLB1GQQUZxcA7S7qeOy7J4KiUlFk-KilYLwZmukEpR4GBcWTkznW0p6q9Rs1FN_-BdRv0mvxi0klH4_V7_-NGx3TQi9-C5kwKWvl3F77CCzgLodQfPFh7OAl-0od41D1rJRWsCry6F0jx9wa5VPVsYZ5NgLhlzTreqV4S0VZ0f0FtfX9OMP63oUSfI6HPkdDnSOhzJNp_Xj6u3A</recordid><startdate>20210816</startdate><enddate>20210816</enddate><creator>McKnight, J. Chris</creator><creator>Mulder, Eric</creator><creator>Ruesch, Alexander</creator><creator>Kainerstorfer, Jana M.</creator><creator>Wu, Jingyi</creator><creator>Hakimi, Naser</creator><creator>Balfour, Steve</creator><creator>Bronkhorst, Mathijs</creator><creator>Horschig, Jörn M.</creator><creator>Pernett, Frank</creator><creator>Sato, Katsufumi</creator><creator>Hastie, Gordon D.</creator><creator>Tyack, Peter</creator><creator>Schagatay, Erika</creator><general>The Royal Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><scope>ADTPV</scope><scope>AKRZP</scope><scope>AOWAS</scope><scope>D8T</scope><scope>DG5</scope><scope>ZZAVC</scope><orcidid>https://orcid.org/0000-0002-3872-4886</orcidid><orcidid>https://orcid.org/0000-0002-9787-6660</orcidid><orcidid>https://orcid.org/0000-0002-9773-2755</orcidid><orcidid>https://orcid.org/0000-0002-8409-4790</orcidid><orcidid>https://orcid.org/0000-0002-0159-431X</orcidid><orcidid>https://orcid.org/0000-0002-0410-0303</orcidid></search><sort><creationdate>20210816</creationdate><title>When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers</title><author>McKnight, J. Chris ; Mulder, Eric ; Ruesch, Alexander ; Kainerstorfer, Jana M. ; Wu, Jingyi ; Hakimi, Naser ; Balfour, Steve ; Bronkhorst, Mathijs ; Horschig, Jörn M. ; Pernett, Frank ; Sato, Katsufumi ; Hastie, Gordon D. ; Tyack, Peter ; Schagatay, Erika</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>breath-hold diving</topic><topic>cererbal oxygenation</topic><topic>diving physiology</topic><topic>freediving</topic><topic>near-infrared spectroscopy</topic><topic>SpO</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McKnight, J. Chris</creatorcontrib><creatorcontrib>Mulder, Eric</creatorcontrib><creatorcontrib>Ruesch, Alexander</creatorcontrib><creatorcontrib>Kainerstorfer, Jana M.</creatorcontrib><creatorcontrib>Wu, Jingyi</creatorcontrib><creatorcontrib>Hakimi, Naser</creatorcontrib><creatorcontrib>Balfour, Steve</creatorcontrib><creatorcontrib>Bronkhorst, Mathijs</creatorcontrib><creatorcontrib>Horschig, Jörn M.</creatorcontrib><creatorcontrib>Pernett, Frank</creatorcontrib><creatorcontrib>Sato, Katsufumi</creatorcontrib><creatorcontrib>Hastie, Gordon D.</creatorcontrib><creatorcontrib>Tyack, Peter</creatorcontrib><creatorcontrib>Schagatay, Erika</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>SwePub</collection><collection>SWEPUB Mittuniversitetet full text</collection><collection>SwePub Articles</collection><collection>SWEPUB Freely available online</collection><collection>SWEPUB Mittuniversitetet</collection><collection>SwePub Articles full text</collection><jtitle>Philosophical transactions of the Royal Society of London. Series B. Biological sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McKnight, J. Chris</au><au>Mulder, Eric</au><au>Ruesch, Alexander</au><au>Kainerstorfer, Jana M.</au><au>Wu, Jingyi</au><au>Hakimi, Naser</au><au>Balfour, Steve</au><au>Bronkhorst, Mathijs</au><au>Horschig, Jörn M.</au><au>Pernett, Frank</au><au>Sato, Katsufumi</au><au>Hastie, Gordon D.</au><au>Tyack, Peter</au><au>Schagatay, Erika</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers</atitle><jtitle>Philosophical transactions of the Royal Society of London. Series B. Biological sciences</jtitle><date>2021-08-16</date><risdate>2021</risdate><volume>376</volume><issue>1831</issue><spage>20200349</spage><epage>20200349</epage><pages>20200349-20200349</pages><issn>0962-8436</issn><issn>1471-2970</issn><eissn>1471-2970</eissn><abstract>Continuous measurements of haemodynamic and oxygenation changes in free living animals remain elusive. However, developments in biomedical technologies may help to fill this knowledge gap. One such technology is continuous-wave near-infrared spectroscopy (CW-NIRS)—a wearable and non-invasive optical technology. Here, we develop a marinized CW-NIRS system and deploy it on elite competition freedivers to test its capacity to function during deep freediving to 107 m depth. We use the oxyhaemoglobin and deoxyhaemoglobin concentration changes measured with CW-NIRS to monitor cerebral haemodynamic changes and oxygenation, arterial saturation and heart rate. Furthermore, using concentration changes in oxyhaemoglobin engendered by cardiac pulsation, we demonstrate the ability to conduct additional feature exploration of cardiac-dependent haemodynamic changes. Freedivers showed cerebral haemodynamic changes characteristic of apnoeic diving, while some divers also showed considerable elevations in venous blood volumes close to the end of diving. Some freedivers also showed pronounced arterial deoxygenation, the most extreme of which resulted in an arterial saturation of 25%. Freedivers also displayed heart rate changes that were comparable to diving mammals both in magnitude and patterns of change. Finally, changes in cardiac waveform associated with heart rates less than 40 bpm were associated with changes indicative of a reduction in vascular compliance. The success here of CW-NIRS to non-invasively measure a suite of physiological phenomenon in a deep-diving mammal highlights its efficacy as a future physiological monitoring tool for human freedivers as well as free living animals.
This article is part of the theme issue ‘Measuring physiology in free-living animals (Part II)’.</abstract><pub>The Royal Society</pub><pmid>34176327</pmid><doi>10.1098/rstb.2020.0349</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-3872-4886</orcidid><orcidid>https://orcid.org/0000-0002-9787-6660</orcidid><orcidid>https://orcid.org/0000-0002-9773-2755</orcidid><orcidid>https://orcid.org/0000-0002-8409-4790</orcidid><orcidid>https://orcid.org/0000-0002-0159-431X</orcidid><orcidid>https://orcid.org/0000-0002-0410-0303</orcidid><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0962-8436 |
ispartof | Philosophical transactions of the Royal Society of London. Series B. Biological sciences, 2021-08, Vol.376 (1831), p.20200349-20200349 |
issn | 0962-8436 1471-2970 1471-2970 |
language | eng |
recordid | cdi_swepub_primary_oai_DiVA_org_miun_42761 |
source | PubMed (Medline) |
subjects | breath-hold diving cererbal oxygenation diving physiology freediving near-infrared spectroscopy SpO |
title | When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers |
url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T15%3A13%3A37IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_swepu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=When%20the%20human%20brain%20goes%20diving:%20using%20near-infrared%20spectroscopy%20to%20measure%20cerebral%20and%20systemic%20cardiovascular%20responses%20to%20deep,%20breath-hold%20diving%20in%20elite%20freedivers&rft.jtitle=Philosophical%20transactions%20of%20the%20Royal%20Society%20of%20London.%20Series%20B.%20Biological%20sciences&rft.au=McKnight,%20J.%20Chris&rft.date=2021-08-16&rft.volume=376&rft.issue=1831&rft.spage=20200349&rft.epage=20200349&rft.pages=20200349-20200349&rft.issn=0962-8436&rft.eissn=1471-2970&rft_id=info:doi/10.1098/rstb.2020.0349&rft_dat=%3Cproquest_swepu%3E2545987063%3C/proquest_swepu%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c620t-b9c1bf6160f6b45c0584d470bd17712c4f976286b2a5b99d1e2ead0f4dd518193%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2545987063&rft_id=info:pmid/34176327&rfr_iscdi=true |