Abstract

Five girl swimmers belonging to the Hungarian top performed an unusually intensive swim training, and the other day they had their usual, adapted training. In the main part of their training they swam 6 times 200 meter with 3 min breaks. The time score approximated their best seasonal results by 9,0-2,9 sec. Blood acidosis and heart rate not referred to an extreme load, body temperature has not been elevated. In the blood samples taken before and immediately after the swim trainings, levels of the muscle-originated enzymes (creatin kinase, lactat dehydrogenase, myoglobin) usually increased after the loads. No consequent change was found in the level of cortisol, insuline, T3, T4, growth hormone and dehydroepiandrostendione. The most impressive increment in the prolactine was revealed which has doubled after the intensive training. If the conventional parameters not mark the intensity of load, some of the stress hormones and enzymes can refer to the severity of the training. Main points of the literature are reviewed. Verf.-Referat