在耐力运动员过度训练后,血糖控制和葡萄糖耐受性的变化
Alicia M Ranahan1, Christopher Pignanelli2, Kyle M A Thompson2
1Exercise Physiology & Performance Laboratory, Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada.
概括
过度训练并没有改变耐力运动员的血糖控制. 然而,一周的恢复增加了葡萄糖和葡萄糖的变化,这表明过度训练后的血糖控制受到干扰.
科学领域:
- 内分泌学 在内分泌学.
- 运动科学 运动科学 运动科学
- 代谢健康 代谢健康
背景情况:
- 之前的研究表明,运动期间超越会影响葡萄糖代谢.
- 超越对自由生活的血糖控制的影响仍然不清楚.
- 了解血糖反应对于运动员的健康和表现至关重要.
研究的目的:
- 研究包括超训练和恢复在内的5周训练方案对耐力运动员的血糖控制的影响.
- 用持续血糖监测 (CGM) 和口服血糖耐受性测试 (OGTT) 来评估葡萄糖代谢的变化.
主要方法:
- 经过训练的耐力运动员 (n=10) 接受了为期5周的减少训练,高强度过度训练和恢复.
- 连续血糖监测器 (CGM) 收集了分钟一分钟的间歇血糖数据.
- 在禁食75g口服葡萄糖耐受性测试 (OGTT) 进行了超训前,超训后和恢复后的测试.
主要成果:
- 过度训练并没有显著改变24小时平均葡萄糖,夜间葡萄糖或正常葡萄糖范围中的时间.
- 恢复阶段显示高血糖 (>7.8 mmol/L) 的时间比例较高,血糖外流幅度增加.
- 口服葡萄糖耐受性测试表明,过度训练后葡萄糖耐受性得到改善,但在恢复阶段情况恶化.
结论:
- 在训练有素的耐力运动员中,过度训练本身似乎不会扰乱自由生活的血糖控制或葡萄糖耐受性.
- 过度训练后的后续恢复周与葡萄糖变异性增加和葡萄糖水平升高有关.
- 这些发现表明,在强度训练后的恢复期间,血糖控制可能会受到干扰.
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