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Erythropoietin, 2,3 diphosphoglycerate and plasma volume during moderate‐altitude training
Author(s) -
Klausen T.,
Ghisler U.,
Mohr T.,
FoghAndersen N.
Publication year - 1992
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/j.1600-0838.1992.tb00312.x
Subject(s) - erythropoietin , altitude (triangle) , diphosphoglycerate , altitude training , medicine , endocrinology , zoology , effects of high altitude on humans , plasma volume , biology , hemoglobin , physical therapy , anatomy , geometry , mathematics , athletes
Six male well trained cross‐country skiers were exposed to 6 d of training 4 h/d at an altitude of 2700 m. Living quarters were at 2000 m. Measurements of serum‐erythropoietin concentration ([EPO]), erythrocyte‐ 2,3 diphosphoglycerate (DPG), haemoglobin (HB), packed cell volume (PCV), body mass (BM) and resting heart rate (HR) were made before, during and after moderate‐altitude training. Total body haemoglobin (THB) was determined before and after altitude training. Plasma volume (PV) was calculated from THB, PCV and HB. The daily EPO production was calculated from [EPO] and PV. Moderate‐altitude EPO production at days 2, 3 and 6 was significantly higher than prealtitude levels. DPG increased significantly at moderate altitude. Pre‐altitude and moderate‐altitude EPO production vs DPG were correlated. Moderate‐altitude levels of BM decreased, PV increased and HB decreased (NS). During moderate‐altitude training, DPG exerts a certain feedback regulation of EPO production. The temporal courses of [EPO] and EPO production at moderate altidude are not affected by variations in PV.