女子水泳選手のトレーニング期間中における低圧環境暴露が赤血球内2,3-DPG,唾液中の血漿 cortisol 及び testosterone に及ぼす影響

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Thirteen female swimmers (ranging in age from 15 to 18 years) were selected as subjects and divided into two groups ; group A (subjects of experiment) consisted of six subjects in whom low pressure was loaded and group B (subjects of control) consisted of seven in whom low pressure was no given. During training, circuit weight training was performed in a low pressure environment and it was combined with conventional swimming training. We studied the effect of these types of training on their red-cell 2,3-diphosphoglycerate, salivary cortisol, and plasma testosterone. (1)The 2,3-DPG levels showed a greater increase after loading exercise than at the time of resting in both groups A and B. The increase was highly significant in group A. Additionally, 10 days after the removal of the loading, hemoglobin and hematocrit levels were significantly decreased in groups A and B, and a significant increase in 2,3-DPG was observed in group A. (2)Only after loading low pressure was the cortisol level higher in group A than in group B. However, there was no significant difference between the two groups in the amount of exercise. loading when heart rate was used as the index. (3)Testosterone tended to show a greater increase after increase after exercise loading than on the first day of the experiment. However, neither an effect of exposure to low pressure on testosterone nor a significant difference between the two groups was observed. According to the results, in swimming, an endurance contest, physical during training are almost the same in group A and B, but it is considered that a concurrent severe hypoxic condition as a result of low pressure loading brings about homeostasis in the living body and the homeostasis leads to an attempt to increase oxygen uptake by the tissues, yeilding increased staying power.
1985-02-01

女子水泳選手のトレーニング期間中における低圧環境暴露が赤血球内2,3-DPG,唾液中の血漿 cortisol 及び testosterone に及ぼす影響

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