Erythrocyte 2,3-diphosphoglycerate concentration before and after a marathon in men.
Erythrocyte 2,3-diphosphoglycerate (2,3-DPG) concentration was studied in 23 runners before and after a marathon race. Blood samples were drawn from an antecubital vein the morning before the race (baseline), at 3 p.m. 2 h before the start, on finishing, and 12 and 36 h later. Compared to the baseline values, erythrocyte 2,3-DPG concentration was increased (p less than 0.001) immediately after the marathon from 4.62 +/- 0.14 to 5.56 +/- 0.13 mumol.ml-1 RBC and remained elevated 12 h later (5.45 +/- 0.14 mumol.ml-1 RBC): it returned to prerace values 36 h after completion of the marathon.
Lijnen
P
P
Department of Pathophysiology, Faculty of Medicine, University of Leuven (K. U. Leuven), Belgium.
Hespel
P
P
Fagard
R
R
Lysens
R
R
Vanden Eynde
E
E
Goris
M
M
Goossens
W
W
Amery
A
A
D019794:2,3-Diphosphoglycerate; D000293:Adolescent; D000328:Adult; D001772:Blood Cell Count; D001794:Blood Pressure; D001835:Body Weight; D004163:Diphosphoglyceric Acids / Q000097:blood*; D004912:Erythrocytes / Q000378:metabolism*; D006339:Heart Rate; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D008297:Male; D009994:Osmolar Concentration; D010807:Physical Endurance; D012420:Running
D004163:Diphosphoglyceric Acids; D006454:Hemoglobins; D019794:2,3-Diphosphoglycerate