Abstract

We have observed some metabolic variations upon long distance ski runners, while subjected to heavy exercise, with high caloric wasting, both in periods of training and competition. Our survey on these athletes revealed progressiveasthenia, that could not be justified by the amount of work, and their weightswere clearly under optimal values; their diets were hypocaloric and unbalancedand so we prescribed an equilibrated diet of proteins, glucids and lipids to which we added a dietetic mixture containing mainly oligosaccarids (1000 cal/ day). For this paper we analysed the weight changes, urinary excretion of N, glucose, ketonic bodies and electrolytes, the plasma level changes of NEFA andsome oxidative enzym activities. We found that under low caloric intake there was muscular stress and gluconeogenesis. After thebeginning of our diet the ematochemical and urinary parameters normalized. The glucidic mixture was really useful to fulfil the high caloric needs and was well tolerated in all the cases, even after repeated administration. Verf.-Referat