短期停止訓練對不同位置橄欖球選手之葡萄糖耐受度影響

The Effects of Glucose Tolerance on Rugby Players after Short Term Detraining

蘇福新(Fu-Hsin Su) ； 錢桂玉(Knei-Yu Chian) ； 李毓國(Yu-Kuo Lee) ； 陳美枝(Mei-Chih Chen) ； 林勁宏(Ching-Hung Lin) ； 郭家驊(Chia-Hua Kuo)

《體育學報》 39卷3期 (2006/09) Pp. 1-13

https://doi.org/10.6222/pej.3903.200609.1101

摘要

目的：探討訓練期橄欖球前鋒與後衛之葡萄糖耐受度差異，以及26天短期停止訓練對兩者之葡萄糖耐受度影響效應。方法：本研究招募甲組男子橄欖球選手共25位（前鋒12位，平均20.5±0.3歲，179.7±2公分，93.6±4.7公斤；後衛13位，平均19.8±.05歲，171.4±1.3公分，71.3±1.8公斤），運動訓練強度為以年齡預估之最大心跳率75%-90%，於停止訓練前後各進行一次口服葡萄糖耐受度、胰島素、可體松、睪固酮、脫氫異雄固酮－硫酸鹽測量以及三日飲食紀錄。結果：研究結果顯示：(1)後衛訓練期間胰島素敏感度較前鋒優，(2)短期停止訓練造成前鋒與後衛之體脂肪百分比顯著增加，且前鋒去脂體重於後測時亦顯著性增加，(3)後衛之葡萄糖耐受度、胰島素敏感度於停止訓練後顯著變差，(4)停止訓練後，前鋒之脫氫異雄固酮－硫酸鹽、睪固酮/可體松(2.12±0.61 vs. 0.74±0.27)比值以及畢固酮增加量顯著大於後衛，(5)前鋒於訓練期熱量攝取顯著低於後衛(23.8 vs. 30.05 Kcal/kg)，停止訓練後攝取量兩者無差異。結論　脂體重以及較高濃度之畢固酮，可能是使其在停止運動和脂肪增加的情況下，葡萄糖耐受度仍不變差的主要影響因素。

關鍵字

DHEA-S ； 睪固酮 ； 胰島素敏感度 ； 身體組成

並列摘要

Purpose: The purpose of this study was to compare glucose tolerance between backs and forwards during training period. We also investigated the effects of glucose tolerance on different position players after short term detraining. Methods: We recruited 25 college rugby players as subjects (12 forwards, 20.5±0.3 yr, 179.7±2 cm, 93.6±4.7 Kg; 13 backs, 19.8±.05 yr, 171.4±1.3 cm, 71.3±1.8 Kg). We performed Oral Glucose Tolerance Test (OGTT) and measured insulin, saliva's DHEA-S, serum testosterone, cortisol, and body composition before and after 26 days detraining. A 3-day dietary record was also performed to monitor dietary changes between training and detraining periods. Results: The results showed that: (1) Backs had lower insulin level than forwards during training period. (2) Forwards had significantly increasing body fat and free body mass (FFM). (3) The insulin level and OGTT performance were significantly decreased after detraining in the backs. (4) Forwards had higher ratio of testosterone and cortisol, testosterone and DHEA-S level than backs after detraining. (5) Forwards consumed lower calories (23.8 Kcal/kg; 30.05 Kcal/kg) than backs during training period. Conclusion: After short term detraining, forwards had increasing testosterone to modify the decreasing glucose tolerance effects.

並列關鍵字

DHEA-S ； testosterone ； insulin sensitivity ； body composition

參考文獻

Asp, S.,Daugaard, J. R.,Richter, E. A.(1995).Eccentric exercise decreases glucose transporter GLUT4 protein in human muscle.Journal of Physiology.482(3),705-712.

Baker, D.,Nance, S.(1999).The relation between running speed and measures of strength and power in professional rugby league players.Journal of Strength Condition Research.13(3),230-235.

Bergstorm, J.,Hermansen, L.,Hultman, E.,Saltin, B.(1967).Diet muscle glycogen and physical Performance.Acta Physiologica Scandinavica.71,140-150.

Birnbaum, M. J.(2001).Diabetes dialogue between muscle and fat.Nature.409,672-673.

Breda, E. V.,Keizer, H.,Kuipers, H.,Kranenburg, G.(2003).Effect of testosterone and endurance training on glycogen metabolism in skeletal muscle of chronic hyperglycaemic female rats.British Journal of Sports Medicine.37,345-350.