15 untrained women were subjected to a walking treadmill test to determine the influence of maximal exercise upon synthesis of erythrocyte 2,3 DPG. Although there was a 9.8% increase in the 2,3 DPG content following exercise, there was a concomitant 9.4% increase in the hemoglobin level; therefore, when 2,3 DPG is expressed as a ratio to hemoglobin (See Article), there was no significant change as a result of exercise stress. It was suggested that three additive factors produced during strenuous exercise; decreased pH; increased hemoglobin concentration; and increased CO2 production result in by-product inhibition of 2,3 DPG synthesis. It is concluded that 2,3 DPG does not provide a physiologic benefit in the adaptation of the oxygen transport system to exercise.
SEEK DEMO ID: http://demo.seek4science.org/publications/18
PubMed ID: 234
Projects: SysMO DB
Journal: Eur J Appl Physiol Occup Physiol
Date Published: 5th Dec 1975
Authors: H W Bonner, C A Tate, C K Buffington
Created: 31st Jan 2012 at 15:13