頁籤選單縮合
題 名 | Effect of a Two-month Detraining on Glucose Tolerance and Insulin Sensitivity in Athletes-link to Adrenal Steroid Hormones |
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作 者 | Wang, Pin-tai; Chiang, I-tsun; Lin, Chih-yuan; Hou, Chien-wen; Chen, Chung-yu; Lee, Hsing-hao; Chang, Wei-hsiang; Kuo, Chia-hua; | 書刊名 | 中國生理學雜誌 |
卷 期 | 49:5 民95.10 |
頁 次 | 頁251-257 |
分類號 | 364.6483 |
關鍵詞 | Physical inactivity; Obesity; Insulin resistance; Hyperinsulinemia; Cortisol; DHEA-S; |
語 文 | 英文(English) |
英文摘要 | Reduction in physical activity has been demonstrated to associate with the increased risk in insulin resistance and type 2 diabetes. To determine whether alteration in insulinemia, due to abstention from regular exercise training, is associated with changes in serum dehydroepiandrosterone sulfate (DHEAS) and cortisol, 18 highly trained badminton players (21.2±0.3 years) were enrolled into a 2-month detraining study. Fasting serum insulin, glucose, DHEA-S, and cortisol were determined at trained state and at day 60 of detraining. Glucose tolerance and insulin sensitivity were assessed by an oral glucose tolerance test (OGTT). The 2-month detraining increased fasting glucose and insulin concentrations and body weight slightly, but did not significantly affect glucose tolerance and insulin response curve, in which 10 subjects had increased and 8 subjects had slightly decreased in the area under curve for insulin (IAUC). In the subjects with increased IAUC, serum cortisol was also elevated (from 0.44±0.07 to 0.83±0.26 U/l, P<0.05) in parallel, and serum creatine kinase (CK) was unaltered during detraining. Whereas in the subjects with decreased IAUC, serum cortisol (from 0.51±0.19 to 0.54±0.14 U/l, no significance) was not changed and serum creatine kinase (from 461±179 to 151±21 U/l) was decreased during detraining. Two groups of detrained subjects exhibited a similar reduction in serum DHEA-S levels and slight elevation in body weight. The novel finding of the study is that the changes in serum cortisol, but not DHEA-S, were associated with the change in insulin sensitivity during early phase of lifestyle change from physically active to sedentary, and this response appears to be varied individually among athletes. |
本系統中英文摘要資訊取自各篇刊載內容。