Acute fall and long-term rise in oxygen saturation in response to meditation.
Identifieur interne : 000A88 ( Main/Exploration ); précédent : 000A87; suivant : 000A89Acute fall and long-term rise in oxygen saturation in response to meditation.
Auteurs : Nicol F. Bernardi [Canada] ; Marco Bordino [Finlande] ; Lucio Bianchi [Italie] ; Luciano Bernardi [Finlande]Source :
- Psychophysiology [ 1540-5958 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Oxygen.
- metabolism : Brain.
- Adult, Blood Pressure, Electrocardiography, Female, Heart Rate, Humans, Male, Meditation, Respiration, Skin Physiological Phenomena, Young Adult.
Abstract
The effects of meditation on arterial and tissue oxygenation are unknown and difficult to assess because respiration is often altered, directly or indirectly, during meditation practice. Thus, changes in respiration may affect cardiovascular responses independently from meditation. In this study, we aim to isolate the specific effect of meditation on arterial and tissue oxygenation and other cardiorespiratory indexes while systematically controlling for the role of respiration. Furthermore, we aim to clarify to what extent prior expertise in meditation practice is needed to observe reliable changes. Eighty participants, half with and half without prior meditation experience, were tested while pacing breathing at predetermined rates, in the presence or absence of mantra meditation instructions, and in a body scan meditation that did not involve controlled breathing. Continuous recordings were acquired for arterial and brain oxygenation, respiratory excursion, electrocardiogram, skin vasomotion, and blood pressure. In both groups, meditation acutely decreased arterial and cerebral oxygen saturation, reduced chemoreflex sensitivity, and prolonged the RR interval, independently of respiration. Conversely, slow breathing improved heart rate variability, independently of concurrent meditation. In addition to the immediate effects of meditation, the individuals with long-term practice of meditation had overall higher arterial and cerebral oxygen saturation, overall lower blood pressure, and slower baseline respiration. Meditation acutely lowers arterial and tissue oxygenation. A repeated exposure to this condition may lead to long-term adaptation and, through increased ventilatory efficiency and improved gas exchanges, to an increase in baseline oxygenation. Meditation induces favorable changes in cardiovascular and respiratory end points of clinical interest.
DOI: 10.1111/psyp.12972
PubMed: 28840941
Affiliations:
- Canada, Finlande, Italie
- Québec, Uusimaa
- Helsinki, Montréal
- Université McGill, Université d'Helsinki
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Bernardi</name><affiliation wicri:level="4"><nlm:affiliation>Department of Psychology, McGill University, Montréal, Québec, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Psychology, McGill University, Montréal, Québec</wicri:regionArea><orgName type="university">Université McGill</orgName><placeName><settlement type="city">Montréal</settlement><region type="state">Québec</region></placeName></affiliation><affiliation wicri:level="1"><nlm:affiliation>International Laboratory for Brain, Music and Sound Research, Montréal, Québec, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>International Laboratory for Brain, Music and Sound Research, Montréal, Québec</wicri:regionArea><wicri:noRegion>Québec</wicri:noRegion></affiliation></author><author><name sortKey="Bordino, Marco" sort="Bordino, Marco" uniqKey="Bordino M" first="Marco" last="Bordino">Marco Bordino</name><affiliation wicri:level="4"><nlm:affiliation>Folkälsan Institute of Genetics, Folkälsan Research Center, University of Helsinki, Helsinki, Finland.</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Folkälsan Institute of Genetics, Folkälsan Research Center, University of Helsinki, Helsinki</wicri:regionArea><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName></affiliation></author><author><name sortKey="Bianchi, Lucio" sort="Bianchi, Lucio" uniqKey="Bianchi L" first="Lucio" last="Bianchi">Lucio Bianchi</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, University of Pavia, Pavia, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Department of Internal Medicine, University of Pavia, Pavia</wicri:regionArea><wicri:noRegion>Pavia</wicri:noRegion></affiliation></author><author><name sortKey="Bernardi, Luciano" sort="Bernardi, Luciano" uniqKey="Bernardi L" first="Luciano" last="Bernardi">Luciano Bernardi</name><affiliation wicri:level="4"><nlm:affiliation>Folkälsan Institute of Genetics, Folkälsan Research Center, University of Helsinki, Helsinki, Finland.</nlm:affiliation><country xml:lang="fr">Finlande</country><wicri:regionArea>Folkälsan Institute of Genetics, Folkälsan Research Center, University of Helsinki, Helsinki</wicri:regionArea><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName></affiliation></author></analytic><series><title level="j">Psychophysiology</title><idno type="eISSN">1540-5958</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult (MeSH)</term><term>Blood Pressure (MeSH)</term><term>Brain (metabolism)</term><term>Electrocardiography (MeSH)</term><term>Female (MeSH)</term><term>Heart Rate (MeSH)</term><term>Humans (MeSH)</term><term>Male (MeSH)</term><term>Meditation (MeSH)</term><term>Oxygen (metabolism)</term><term>Respiration (MeSH)</term><term>Skin Physiological Phenomena (MeSH)</term><term>Young Adult (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte (MeSH)</term><term>Encéphale (métabolisme)</term><term>Femelle (MeSH)</term><term>Humains (MeSH)</term><term>Jeune adulte (MeSH)</term><term>Mâle (MeSH)</term><term>Méditation (MeSH)</term><term>Oxygène (métabolisme)</term><term>Phénomènes physiologiques de la peau (MeSH)</term><term>Pression sanguine (MeSH)</term><term>Respiration (MeSH)</term><term>Rythme cardiaque (MeSH)</term><term>Électrocardiographie (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Oxygen</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Brain</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Encéphale</term><term>Oxygène</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Blood Pressure</term><term>Electrocardiography</term><term>Female</term><term>Heart Rate</term><term>Humans</term><term>Male</term><term>Meditation</term><term>Respiration</term><term>Skin Physiological Phenomena</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Femelle</term><term>Humains</term><term>Jeune adulte</term><term>Mâle</term><term>Méditation</term><term>Phénomènes physiologiques de la peau</term><term>Pression sanguine</term><term>Respiration</term><term>Rythme cardiaque</term><term>Électrocardiographie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects of meditation on arterial and tissue oxygenation are unknown and difficult to assess because respiration is often altered, directly or indirectly, during meditation practice. Thus, changes in respiration may affect cardiovascular responses independently from meditation. In this study, we aim to isolate the specific effect of meditation on arterial and tissue oxygenation and other cardiorespiratory indexes while systematically controlling for the role of respiration. Furthermore, we aim to clarify to what extent prior expertise in meditation practice is needed to observe reliable changes. Eighty participants, half with and half without prior meditation experience, were tested while pacing breathing at predetermined rates, in the presence or absence of mantra meditation instructions, and in a body scan meditation that did not involve controlled breathing. Continuous recordings were acquired for arterial and brain oxygenation, respiratory excursion, electrocardiogram, skin vasomotion, and blood pressure. In both groups, meditation acutely decreased arterial and cerebral oxygen saturation, reduced chemoreflex sensitivity, and prolonged the RR interval, independently of respiration. Conversely, slow breathing improved heart rate variability, independently of concurrent meditation. In addition to the immediate effects of meditation, the individuals with long-term practice of meditation had overall higher arterial and cerebral oxygen saturation, overall lower blood pressure, and slower baseline respiration. Meditation acutely lowers arterial and tissue oxygenation. A repeated exposure to this condition may lead to long-term adaptation and, through increased ventilatory efficiency and improved gas exchanges, to an increase in baseline oxygenation. Meditation induces favorable changes in cardiovascular and respiratory end points of clinical interest.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28840941</PMID><DateCompleted><Year>2018</Year><Month>06</Month><Day>19</Day></DateCompleted><DateRevised><Year>2018</Year><Month>06</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1540-5958</ISSN><JournalIssue CitedMedium="Internet"><Volume>54</Volume><Issue>12</Issue><PubDate><Year>2017</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Psychophysiology</Title><ISOAbbreviation>Psychophysiology</ISOAbbreviation></Journal><ArticleTitle>Acute fall and long-term rise in oxygen saturation in response to meditation.</ArticleTitle><Pagination><MedlinePgn>1951-1966</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/psyp.12972</ELocationID><Abstract><AbstractText>The effects of meditation on arterial and tissue oxygenation are unknown and difficult to assess because respiration is often altered, directly or indirectly, during meditation practice. Thus, changes in respiration may affect cardiovascular responses independently from meditation. In this study, we aim to isolate the specific effect of meditation on arterial and tissue oxygenation and other cardiorespiratory indexes while systematically controlling for the role of respiration. Furthermore, we aim to clarify to what extent prior expertise in meditation practice is needed to observe reliable changes. Eighty participants, half with and half without prior meditation experience, were tested while pacing breathing at predetermined rates, in the presence or absence of mantra meditation instructions, and in a body scan meditation that did not involve controlled breathing. Continuous recordings were acquired for arterial and brain oxygenation, respiratory excursion, electrocardiogram, skin vasomotion, and blood pressure. In both groups, meditation acutely decreased arterial and cerebral oxygen saturation, reduced chemoreflex sensitivity, and prolonged the RR interval, independently of respiration. Conversely, slow breathing improved heart rate variability, independently of concurrent meditation. In addition to the immediate effects of meditation, the individuals with long-term practice of meditation had overall higher arterial and cerebral oxygen saturation, overall lower blood pressure, and slower baseline respiration. Meditation acutely lowers arterial and tissue oxygenation. A repeated exposure to this condition may lead to long-term adaptation and, through increased ventilatory efficiency and improved gas exchanges, to an increase in baseline oxygenation. Meditation induces favorable changes in cardiovascular and respiratory end points of clinical interest.</AbstractText><CopyrightInformation>© 2017 Society for Psychophysiological Research.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bernardi</LastName><ForeName>Nicolò F</ForeName><Initials>NF</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-1250-1916</Identifier><AffiliationInfo><Affiliation>Department of Psychology, McGill University, Montréal, Québec, Canada.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>International Laboratory for Brain, Music and Sound Research, Montréal, Québec, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bordino</LastName><ForeName>Marco</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Folkälsan Institute of Genetics, Folkälsan Research Center, University of Helsinki, Helsinki, Finland.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bianchi</LastName><ForeName>Lucio</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Department of Internal Medicine, University of Pavia, Pavia, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bernardi</LastName><ForeName>Luciano</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Folkälsan Institute of Genetics, Folkälsan Research Center, University of Helsinki, Helsinki, Finland.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>08</Month><Day>25</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Psychophysiology</MedlineTA><NlmUniqueID>0142657</NlmUniqueID><ISSNLinking>0048-5772</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>S88TT14065</RegistryNumber><NameOfSubstance UI="D010100">Oxygen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001794" MajorTopicYN="N">Blood Pressure</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001921" MajorTopicYN="N">Brain</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004562" MajorTopicYN="N">Electrocardiography</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006339" MajorTopicYN="N">Heart Rate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019122" MajorTopicYN="Y">Meditation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010100" MajorTopicYN="N">Oxygen</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012119" MajorTopicYN="Y">Respiration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012879" MajorTopicYN="N">Skin Physiological Phenomena</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055815" MajorTopicYN="N">Young Adult</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">breathing</Keyword><Keyword MajorTopicYN="N">heart rate variability</Keyword><Keyword MajorTopicYN="N">meditation</Keyword><Keyword MajorTopicYN="N">oxygen saturation</Keyword><Keyword MajorTopicYN="N">oxygenation</Keyword><Keyword MajorTopicYN="N">respiration</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>01</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2017</Year><Month>05</Month><Day>28</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2017</Year><Month>06</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>8</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>6</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>8</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28840941</ArticleId><ArticleId IdType="doi">10.1111/psyp.12972</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li><li>Finlande</li><li>Italie</li></country><region><li>Québec</li><li>Uusimaa</li></region><settlement><li>Helsinki</li><li>Montréal</li></settlement><orgName><li>Université McGill</li><li>Université d'Helsinki</li></orgName></list><tree><country name="Canada"><region name="Québec"><name sortKey="Bernardi, Nicol F" sort="Bernardi, Nicol F" uniqKey="Bernardi N" first="Nicol F" last="Bernardi">Nicol F. Bernardi</name></region><name sortKey="Bernardi, Nicol F" sort="Bernardi, Nicol F" uniqKey="Bernardi N" first="Nicol F" last="Bernardi">Nicol F. Bernardi</name></country><country name="Finlande"><region name="Uusimaa"><name sortKey="Bordino, Marco" sort="Bordino, Marco" uniqKey="Bordino M" first="Marco" last="Bordino">Marco Bordino</name></region><name sortKey="Bernardi, Luciano" sort="Bernardi, Luciano" uniqKey="Bernardi L" first="Luciano" last="Bernardi">Luciano Bernardi</name></country><country name="Italie"><noRegion><name sortKey="Bianchi, Lucio" sort="Bianchi, Lucio" uniqKey="Bianchi L" first="Lucio" last="Bianchi">Lucio Bianchi</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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