在高负载板压过程中血流的限制不会增加棒的速度,也不会导致非遮蔽的激动肌肉的生理变化
Andrew LeMense1, Abby Fleming2, Samuel Gomez1
1Department of Kinesiology, University of Alabama, Tuscaloosa, Alabama, USA.
Clinical physiology and functional imaging
|March 19, 2025
概括
在50%的动脉阻塞压力 (AOP) 下,血液流量限制 (BFR) 在高负载板压过程中没有提高杆功率或速度. 这表明,对于上肢力量的发展,可能需要更高的BFR压力.
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
- 生物力学 生物力学
背景情况:
- 众所周知,血流限制 (BFR) 训练可以提高抵抗运动中的功率和速度.
- 之前的BFR研究经常使用高闭塞压力 (>80%AOP) 并很少测量即时生理反应.
- 较低的BFR压力对急性上肢功率和生理标志物的有效性仍未得到充分研究.
研究的目的:
- 为了研究在高负载板压过程中50%的动脉阻塞压力 (AOP) 对杆功率和速度的影响.
- 为了评估生理反应,包括血乳酸,肌肉厚度和肌肉激活,在和后的长椅压力低压BFR.
- 为了将这些结果与没有BFR的标准高负载板压机进行比较.
主要方法:
- 十二名经过抵抗训练的雄性在四组四次重复中以75%的最大一次重复率 (1RM) 进行了长椅压力.
- 参与者完成了两个条件:BFR应用在50%AOP的两个手臂,没有BFR.
- 测量包括杆速度,功率,血中乳酸,前腹肌和胸部主要肌肉厚度和激活,使用重复测量ANOVAs进行分析.
主要成果:
- 在BFR (50%AOP) 和非BFR条件之间,没有观察到标杆功率,速度或生理反应的显著差异.
- 在这两种条件下,从运动前到运动后的血乳酸水平显著增加.
- 对于"集"的平均和峰值速度,发现了一个重要的主要效应,表明跨集的速度变化.
结论:
- 在50%AOP下应用BFR似乎不会在高负载板压过程中增强急性杆功率或速度.
- 测量的生理反应在BFR和非BFR条件之间没有显著差异.
- 可能需要更高的阻塞压力来获得BFR的性能优势,以提高上肢力量的发展.
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