In human plasma, the major fraction (about 70%) of cortisol is bound to transcortin, whereas approximately. 20% is bound to albumin, and 10% is free (10).
490
Serum and Saliva Cortisol Responses and Blood Lactate Accumulation during Incremental Exercise Testing K. Port Department of Medical and Biological Disciplines, E. Vilde's Teachers Training Insitute of Tallinn, Estonia; Laboratory of Hormonal Regulation of Muscular Activity, Tartu University, Estonia
K. Port, Serum and Saliva Cortisol Responses and Blood Lactate Accumulation during Incremental Exercise Testing. mt J Sports Med, Vol 12, No 5, pp 490—494,
cortisol complex has no direct hormonal activity (4, 29).
A variety of techniques including equilibrium dialysis (12, 23), ultrafiltration (25, 28) and gel filtration (6)
1991.
Accepted after revision: Januar 2, 1991
In six male physically active subjects the adrenocortical and metabolic changes in response to incremental exercise testing were investigated. Blood and saliva samples were taken at rest, at the end of every workload (duration 4 mm with 50 W increment), immediately and 10 mm after 1 mm all out spurt on the electrically braked cycle ergometer. Both saliva and serum cortisol were measured as well as blood lactate. The cortisol response in serum and in saliva showed similar dynamics (r = 0.86, p
