Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.

<h4>Purpose</h4>This study investigated the acute changes in full spectrum differential blood cell count including reticulocytes and immature reticulocytes after a voluntary maximal dry apnea in non-elite divers. Aim of the present study is to obtain information on important regulatory c...

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Autores principales:	Ramona C Dolscheid-Pommerich, Birgit Stoffel-Wagner, Judith Alberts, Rolf Fimmers, Lars Eichhorn
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/23f21b5d56b34ee39e3ceeb9aca50dbc
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spelling	oai:doaj.org-article:23f21b5d56b34ee39e3ceeb9aca50dbc2021-12-02T20:05:46ZHematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.1932-620310.1371/journal.pone.0237673https://doaj.org/article/23f21b5d56b34ee39e3ceeb9aca50dbc2020-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0237673https://doaj.org/toc/1932-6203<h4>Purpose</h4>This study investigated the acute changes in full spectrum differential blood cell count including reticulocytes and immature reticulocytes after a voluntary maximal dry apnea in non-elite divers. Aim of the present study is to obtain information on important regulatory compensation mechanisms and to provide insights into apneic regulatory processes.<h4>Methods</h4>Ten apnea divers performed a voluntary dry mean apnea time of 317 sec [SD ±111 sec]. Differential blood cell count including reticulocytes was measured before and immediately after a single maximal breath-hold. To evaluate kinetics, blood samples were also taken after 30 min and 4 h. Value distributions are presented with dot plots. P-values were calculated using a mixed linear model for time dependency. Four difference values were compared to baseline values with Dunnett's procedure.<h4>Results</h4>Significant changes were found in red blood cell parameters for erythrocytes, red cell distribution width, hematocrit, hemoglobin, MCV, reticulocytes and immature reticulocytes, and in white blood cell parameters for leucocytes, lymphocytes, immature granulocytes, monocytes, basophile granulocytes, neutrophil granulocytes and eosinophil granulocytes and for thrombocytes.<h4>Conclusion</h4>Adaptive mechanisms regarding cell counts in elite apnea divers are not readily transferable to non-elite recreational sportspersons. Divers and physicians should be aware of the limited adaptive performance of humans in the case of extended apnea.Ramona C Dolscheid-PommerichBirgit Stoffel-WagnerJudith AlbertsRolf FimmersLars EichhornPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 15, Iss 8, p e0237673 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ramona C Dolscheid-Pommerich Birgit Stoffel-Wagner Judith Alberts Rolf Fimmers Lars Eichhorn Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
description	<h4>Purpose</h4>This study investigated the acute changes in full spectrum differential blood cell count including reticulocytes and immature reticulocytes after a voluntary maximal dry apnea in non-elite divers. Aim of the present study is to obtain information on important regulatory compensation mechanisms and to provide insights into apneic regulatory processes.<h4>Methods</h4>Ten apnea divers performed a voluntary dry mean apnea time of 317 sec [SD ±111 sec]. Differential blood cell count including reticulocytes was measured before and immediately after a single maximal breath-hold. To evaluate kinetics, blood samples were also taken after 30 min and 4 h. Value distributions are presented with dot plots. P-values were calculated using a mixed linear model for time dependency. Four difference values were compared to baseline values with Dunnett's procedure.<h4>Results</h4>Significant changes were found in red blood cell parameters for erythrocytes, red cell distribution width, hematocrit, hemoglobin, MCV, reticulocytes and immature reticulocytes, and in white blood cell parameters for leucocytes, lymphocytes, immature granulocytes, monocytes, basophile granulocytes, neutrophil granulocytes and eosinophil granulocytes and for thrombocytes.<h4>Conclusion</h4>Adaptive mechanisms regarding cell counts in elite apnea divers are not readily transferable to non-elite recreational sportspersons. Divers and physicians should be aware of the limited adaptive performance of humans in the case of extended apnea.
format	article
author	Ramona C Dolscheid-Pommerich Birgit Stoffel-Wagner Judith Alberts Rolf Fimmers Lars Eichhorn
author_facet	Ramona C Dolscheid-Pommerich Birgit Stoffel-Wagner Judith Alberts Rolf Fimmers Lars Eichhorn
author_sort	Ramona C Dolscheid-Pommerich
title	Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
title_short	Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
title_full	Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
title_fullStr	Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
title_full_unstemmed	Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
title_sort	hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.
publisher	Public Library of Science (PLoS)
publishDate	2020
url	https://doaj.org/article/23f21b5d56b34ee39e3ceeb9aca50dbc
work_keys_str_mv	AT ramonacdolscheidpommerich hematologicchangesaftershorttermhypoxiainnoneliteapneadiversundervoluntarydryapneaconditions AT birgitstoffelwagner hematologicchangesaftershorttermhypoxiainnoneliteapneadiversundervoluntarydryapneaconditions AT judithalberts hematologicchangesaftershorttermhypoxiainnoneliteapneadiversundervoluntarydryapneaconditions AT rolffimmers hematologicchangesaftershorttermhypoxiainnoneliteapneadiversundervoluntarydryapneaconditions AT larseichhorn hematologicchangesaftershorttermhypoxiainnoneliteapneadiversundervoluntarydryapneaconditions
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Hematologic changes after short term hypoxia in non-elite apnea divers under voluntary dry apnea conditions.

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