在行走过程中大腿肌肉功能
Roman A Tauraginskii1, Fedor Lurie2, Anna Borde3
1Research Laboratory of Venous Hemodynamics, Phlebocenter LLC, Kaliningrad, Russia.
Journal of vascular surgery. Venous and lymphatic disorders
|April 10, 2025
概括
在走路时,腿部表面静脉中的血液流向深层肌肉静脉,而不是向静脉. 腿部肌肉转移了这种流动,挑战了关于静脉血液循环的先前假设.
科学领域:
- 血管生理学 血管生理学
- 人类的机动运动
- 生物机械工程 生物机械工程
背景情况:
- 在下肢的表面静脉血流通常被认为是无序的.
- 最近的发现表明,移动过程中流量模式发生了变化.
- 大腿肌肉在指导静脉外流中的作用需要澄清.
研究的目的:
- 在行走过程中调查大腿静脉网络的压力梯度.
- 为了确定走路时,大腿表面静脉中血液流动的方向.
主要方法:
- 静脉压力测量在大静脉 (GSV) 和大腿肌肉间静脉.
- 测量是在跑步机上以不同的速度行走时进行的.
- 使用双重超声波评估了常见的股骨动脉血流量.
主要成果:
- 在大多数步伐周期中,观察到从表面向肌肉间静脉导向的压力梯度.
- 这种梯度明显大于膝盖和沟GSV段之间的梯度.
- 不管走路的频率如何,GSV压力在膝盖和沟水平上保持一致.
结论:
- 在行走过程中,大腿表面静脉的血液流向肌内静脉.
- 腿部肌肉充当流量转移器,通过穿孔静脉重定向血液.
- 这挑战了纯粹流的概念,并重新定义了穿孔静脉的生理作用.
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