| Articles : The Effect of endurance running to the revitalization of androgens in blood and a sperm motility and morphology |
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| Abstract |
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8 subjects in their twenties were selected observe the effects of continued running on the revitalization of androgens in the blood and the sperm motility and morphology. The subjects worked out the treadmill for 30 minutes with the maximum oxygen uptake of 40%, 60% and 80%. Right after the exercise, the concentration, total motility, VCL and VSL of sperms, percentage of normal sperms. free-testosterone, the androgens in the blood, SHBG and 5α-DHT were compared. As a result, this study concluded as described below. First. there is no significant change in the sperm concentration in accordance with the intensity of exercise. Second. while the total motility of sperms tended to be decreased as the intensity of exercise was increased, the significant changes between each condition are not observed. Third, while the VCL and VSL were decreased as the intensity of exercise was increased, there is no significant change between each condition. Fourth, the percentage of the normal sperms was the highest in 40% VO₂max and tended to be decreased with the increasing intensity of exercise. However, no significant changes are observed between each condition. Fifth, the free testosterone demonstrated significantly higher value with 60% VO₂max than with 40% VO₂max and when the subjects were at ease. Sixth, the SHBG gradually increased according to the intensity of exercise and recorded the highest value with 80%c VO₂max. Seventh, the 5a-DHT demonstrated significantly high value with 60% VO₂max and significantly low value with 80% VO₂max. In conclusion, the long exercise with 60% VO₂max has the positive impact in increasing the activity of 5a-DI-IT and free testosterone for the male adults in their twenties. Moreover, the long exercise with 80% VO₂max is considered to be the intensity of exercise promoting the activation of SHBG. Meanwhile, the long exercise with 40~80% VO₂max doesn`t make any impacts on the mobility and types of sperms. Therefore. it is estimated that 60% VO₂max is the appropriate intensity of long exercise for enhancing the activation of sperms. The future researches need to he conducted to verify the training effects on the activation of sperms. |
| Key Words:
Sperm, androgens, endurance training, infertility, human reproductive |
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