Abstract
The changes in the proteins in the blood and urine after a marathon running were examined in the 5 male athletes, by the precipitin assay, using the ratio of γ-globulin clearance to transferrin clearance, as the selectivity index. Exercise caused a significant increase in transferrin clearance (p<0.05), while inducing only an insignificant increase in γ-globulin clearance.
The selectivity index rose from significantly 0.38±0.15 before exercise to 0.78±0.28 (mean ± standard deviation) after exercise, (p<0.001) . Urinary lactic acid, albumin, β2-microglobulin and creatinine were simultaneously determined and analyzed.
