Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects.

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Abstract Text:

Nicole Prommer,Ulrich Ehrmann,Walter Schmidt, Steinacker,Peter Radermacher,Claus-Martin Muth,Nicole Prommer,Ulrich Ehrmann,Walter Schmidt, Steinacker,Peter Radermacher,Claus-Martin Muth,Nicole Prommer,Ulrich Ehrmann,Walter Schmidt, Steinacker,Peter Radermacher,Claus-Martin Muth,Nicole Prommer,Ulrich Ehrmann,Walter Schmidt, Steinacker,Peter Radermacher,Claus-Martin Muth,

In diving mammals splenic contraction increases circulating red cell volume, whereas in humans increased haemoglobin concentrations have been reported. It is unknown, however, whether repetitive apnea diving also comprises an adaptive increase in total red cell volume as reported in endurance athletes. The first aim of the study therefore was to investigate the effect of repeated apnea dives on splenic size and putative red cell release in trained apnea divers (n = 10) and control subjects (SCUBA divers performing apneas without long-term apnea training, n = 7). Long-term effects of repetitive apnea diving may elevate the oxygen transport capacity by an adaptive increase in total haemoglobin mass as reported in endurance athletes. The second goal, therefore, was to compare the trained apnea divers' and the control divers' total haemoglobin mass (tHb-mass) with that of endurance-trained (n = 9) and untrained (n = 10) non-divers. Before and immediately after a series of five dives to a depth of 4 m in a heated pool, spleen volume was assessed with ultrasound tomography. tHb-mass and plasma volume were measured using the CO-rebreathing method. In the trained apnea divers, repeated apnea dives resulted in a 25% reduction of spleen size (P < 0.001), whereas no significant effect was observed in the control subjects. While tHb-mass did not differ between trained apnea divers, untrained SCUBA divers performing apneas and untrained non-divers, it was 30% lower than in endurance-trained non-divers. We conclude that prolonged apnea training causes marked apnea-induced splenic contraction. In contrast to athletes in endurance sports, the trained apnea divers did not present with increased total haemoglobin mass and, hence, no increase in blood oxygen stores.

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Publishing Authors By Initials

N Prommer,U Ehrmann,W Schmidt,JM Steinacker,P Radermacher,CM Muth,N Prommer,U Ehrmann,W Schmidt,JM Steinacker,P Radermacher,CM Muth,N Prommer,U Ehrmann,W Schmidt,JM Steinacker,P Radermacher,CM Muth,N Prommer,U Ehrmann,W Schmidt,JM Steinacker,P Radermacher,CM Muth,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: European journal of applied physiology

VOLUME: 101

Page Numbers: 753-9

Journal Abbreviation: Eur. J. Appl. Physiol.

ISSN: 1439-6319

DAY: 14

MONTH: 09

YEAR: 2007

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 100954790

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects.

AFFILIATION: Arbeitsbereich Sportmedizin, Universität, 95440, Bayreuth, Germany.

Country: Germany

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Eur J Appl Physiol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects Related Publications

• Brucellosis control in Oregon.
• Chronic copper poisoning in sheep.
• Conjugative DNA transfer in Streptomyces: SpdB2 involved in the intramycelial spreading of plasmid pSVH1 is an oligomeric integral membrane protein that binds to dsDNA.
• Disubstituted pyridines: the double-coupling approach.
• Effects of brief training on use of automated external defibrillators by people without medical expertise.
• LABORATORY RELATIONS: FROM THE VIEWPOINT OF THE LABORATORY INDUSTRY.
• Large-network concepts and small-network characteristics: fixed and variable factors.
• Studies on the morphology and respiration of Anaplasma marginale.
• Total haemoglobin mass and spleen contraction: a study on competitive apnea divers, non-diving athletes and untrained control subjects.
• White muscle disease (myopathy) in lambs and calves. III. Experimental production in calves from cows fed alfalfa hay.
• [Acute kidney failure in obstetrics and gynecology. Pathologic-anatomic part]
• [An impressive case of prostate cancer metastasis to the maxilla.]
• [Deficiency symptoms after gynecological operations, despite unilateral functional conservation.]
• [Effects of acute inflammation of pelvic connective tissue on the efferent urinary ducts.]
• [Ester of carbinol and succinic acid as choleretic.]
• [Function of remaining ovary after unilateral ovarian extirpation or resection.]
• [Heart defects and delivery]
• [Influence of pyelonephritis gravidarum on the fetal development]
• [Investing in the quality of human harmony]
• [On acute kidney failure within the scope of obstetrics and gynecology]
• [On the conservative treatment of postoperative ileus]
• [Ovarian function after bilateral extirpation or resection of the fallopian tubes.]
• [Ovarian function after removal of the corpus uteri.]
• [Potentialized anesthesia.]
• [Prognosis of hydronephrosis occurring after radiotherapy and radical surgery in cervical cancer.]
• [Rapid section during labor]
• [Rare complication following the Marshall-Marchetti operation]
• [Some actual problems in biophysics.]
• [Surgical technic of sterilization]
• [Symptomatology and therapy of mediastinal lipoma.]