职业自行车运动员对高度训练的内分泌和雄激素反应
Raphael Faiss1, Bastien Krumm1, Claes Cubel2
1Research and Expertise in Anti-Doping Sciences - REDs, Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland.
精英骑自行车的人在高空训练期间经历了各种各样的荷尔蒙变化,和IGF-1可能会影响适应. 与中等高度相比,较高的海拔并没有显著增加血红蛋白质量.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 内分泌学 在内分泌学.
背景情况:
- 高空训练对于寻求提高表现的运动员来说是常见的.
- 对海拔高度的血液学反应是个性化的,取决于低氧剂量.
- 高空训练期间内分泌和类固醇反应仍未得到充分研究.
研究的目的:
- 在为期3周的高空训练营期间,研究精英骑自行车者的内分泌和类固醇血标记.
- 为了比较2050m和3000m的反应.
- 探索激素标记物和血液学适应之间的相关性.
主要方法:
- 31名男子精英骑自行车运动员参加了比赛.
- 血液样本分析了丸激素 (T),IGF-1和P-III-NP.
- 血红蛋白质量 (Hbmass) 和血体积 (PV) 通过CO-再呼吸测量.
- 在2050米 (n=19) 或3000米 (n=12) 的高度进行训练.
主要成果:
- (T) 在2050m增加,但不是3000m.
- 在两种高度上,IGF-1提高了海拔后的回报率.
- P-III-NP在2050m下降,并在3000m上升.
- 在两个高度上,Hb质量增加;PV下降,在3000米处更为显著.
- Hb质量与T和IGF-1水平相关.
结论:
- 更高的海拔 (3000米) 并没有产生比2050米更大的Hb质量增加.
- 类固醇和内分泌标记因海拔高度而异.
- 荷尔蒙变化 (T,IGF-1) 可能与2050m的血液学和训练适应有关.
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