Induced Erythrocythemia and Maximal Aerobic Power: An Examination of Modifying Factors,
Abstract
Induced erythrocythemia is associated with an increase in maximal oxygen uptake. Two factors which might influence inter-subject variability for this increase in maximal oxygen uptake are the magnitude of change in hemoglobin concentration and the individual's initial aerobic fitness. To examine these factors, we have obtained and combined individual data from our own research and three other studies which employed similar procedures. In each study freeze-preserved erythrocytes representing the product of two blood units were reinfused and maximal oxygen uptake was measured within 24 to 72-h after reinfusion. The 30 subjects had an initial aerobic power which ranged from 36 to 88 ml 02/dg/min. The combined results from these studies indicate that after erythrocyte reinfusion: 1) the increase in hemoglobin concentration is fairly homogeneous; 2) nearly all individuals demonstrate an increase in maximal oxygen uptake; 3) the magnitude of increase in hemoglobin concentration is not related to the magnitude of increase in maximal oxygen uptake is related to the individual's initial aerobic fitness. Individuals with an initial aerobic fitness between 50 to 64ml O2/kg/min experience approximately twice the increase in maximal oxygen uptake after erythrocyte reinfusion compared to individuals with lesser or geater fitness. Keywords: Blood doping; Blood reinfusion; Ergogenic aids; Exercise performance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1986
- Accession Number
- ADA166522
Entities
People
- Andrew J Young
- Kent B. Pandolf
- Michael N. Sawka
- Richard R. Gonzalez
- Stephen R. Muza
Organizations
- United States Army Research Institute of Environmental Medicine