手冷却会导致氧气吸收动力学的变化
Louis Finiel1, Daria Neyroud2, Jean-Philippe Antonietti3
1Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland. Louis.finiel@unil.ch.
Scientific reports
|October 1, 2024
概括
在冷水中浸泡手部会增加甲醇胺,改善强度运动期间的氧气消耗 (V·O2) 动力学,类似于原始效应. 这表明,catecholamines可能有助于运动员的初始化效应.
科学领域:
- 运动生理学 运动生理学
- 人体生理学 人体生理学
- 运动科学 运动科学 运动科学
背景情况:
- 提升的甲醇胺,如上腺素和上腺素,在对压力的生理反应中起作用.
- 在重复炼中观察到的原始化效应可以增强氧气吸收动力学.
- 了解影响氧气消耗动态的因素对于优化运动表现至关重要.
研究的目的:
- 为了研究冷水手浸泡诱导的甲醇胺升高对强度运动期间氧气消耗 (V ̇O2) 动力学的影响.
- 为了比较冷水手浸泡的效果与V̇O2动力学上确定的原始化效应.
- 探讨catecholamines在调解原始化效应中的潜在作用.
主要方法:
- 十名活跃的参与者进行了三次8分钟的恒定工作速率 (CWR) 练习,强度为25%.
- 在一个CWR之前,在0°C的温度下进行了2分钟的手冷却 (HC).
- 分析了肺气交换和血液样本,以测量V̇O2动力学和甲基醇胺水平 (上腺素和北上腺素).
主要成果:
- 与对照者相比,手冷却 (HC) 和第二次发作 (SB) 显著增加了V̇O2动态的初级阶段幅度.
- 与对照条件相比,HC和SB干预都导致V·O2缓慢元件振幅减少.
- 在手冷却后观察到上腺素 (E) 和上腺素 (NE) 水平的增加.
结论:
- 在冷水中浸泡手,通过增加儿科胺,改变V̇O2动力学类似于原始效应.
- 催化素可能在促进运动期间的原始化效应方面发挥重要作用.
- 需要进行进一步的研究,以充分阐明catecholamines与V̇O2动态上的原始效应之间的联系.
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