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缺血预调对反复冲刺循环表现的影响:一个随机交叉研究

Xinpeng Gao¹, Anjie Wang¹, Junli Fan¹

¹Integrative Exercise Physiology Laboratory, Department of Physical Education, College of Education, Jeonbuk National University, Jeonju, South Korea.

The Journal of sports medicine and physical fitness

|July 18, 2024

概括

当地缺血预调 (LIPC) 在初始阶段改善了重复冲刺循环表现. 远程缺血预制 (RIPC) 在本研究中没有显示除了安慰剂效应之外的好处.

科学领域:

运动生理学运动生理学
运动科学运动科学运动科学
人类表现的人类表现.

背景情况:

理论上说,缺血预先调节 (IPC) 可以提高1-8%的运动表现.
关于IPC对短时间高强度运动 (如冲刺) 的影响的研究有限且相互矛盾.
这项研究研究了IPC对重复冲刺表现的影响,考虑了通过安慰剂对照的心理生理学影响.

研究的目的:

为了确定局部缺血性预制 (LIPC) 和远程缺血性预制 (RIPC) 是否可以提高重复冲刺循环的性能.
为了区分IPC效应与潜在的心理生理反应,使用非遮蔽的安慰剂对照.
在干预后分析性能指标和生理标记 (乳酸盐).

主要方法:

22名健康男性接受了一项随机交叉试验,有四种条件:对照 (CON),假药 (SHAM),RIPC和LIPC.
参与者进行了一次重复的冲刺自行车测试 (5x10秒冲刺40秒休息).
通过平均功率,峰值功率和总工作来评估表现;运动后测量乳酸水平.

主要成果:

与CON相比,LIPC和RIPC在初始冲刺 (1-3组) 中改善了平均功率,峰值功率和总工作.
在SHAM条件中,第1集的峰值功率显著增加,这表明了心理生理学因素.
与CON相比,运动后的SHAM和LIPC组的乳酸盐度在运动后更高.

结论:

局部缺血预制 (LIPC) 显著提高了最初的反复冲刺自行车表现,超过了安慰剂效应.
远程缺血预制 (RIPC) 没有提供超过安慰剂干预观察到的性能益处.
心理生理学因素可能有助于提高表现,但LIPC显示出明显的生理益处.

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