期刊
BULLETIN OF EXPERIMENTAL BIOLOGY AND MEDICINE
卷 146, 期 3, 页码 354-357出版社
SPRINGER
DOI: 10.1007/s10517-008-0292-2
关键词
free testosterone; cortisol; medium intensive exercise
A 4-week study of adaptation reserves of the body was carried out during medium intensive exercise (medium intensive training: 60-80% threshold anaerobic metabolism). Two groups of athletes were singled out by the results of pulsometry analysis: with less than 20% work duration at the level above the 80% threshold anaerobic metabolism and with more than 20% work duration at the level above 80% threshold anaerobic metabolism. No appreciable differences between the concentrations of total testosterone, growth hormone, and cortisol before and after exercise in the groups with different percentage of anaerobic work duration were detected. In group 1 the concentrations of free testosterone did not change throughout the period of observation in comparison with the levels before training. In group 2, the level of free testosterone increased in comparison with the basal level: from 0.61 +/- 0.12 nmol/liter at the end of week 1 to 0.98 +/- 0.11 nmol/liter at the end of week 4 (p<0.01). The results indicate that the level of free testosterone can be used for evaluating the degree of athlete's adaptation to medium intensive exercise.
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