对100英里西州耐力跑的急性心血管反应
Matthew C Babcock1, Omar B El-Kurd2, James R Bagley2
1Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States.
完成161公里长的超级马拉松赛并没有改变中枢动脉硬度,但确实降低了血压. 尽管肌肉损伤很大,但心血管健康基本上没有受到急性影响,尽管心下内脏活力比率下降.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 运动医学 运动医学
背景情况:
- 超级马拉松跑步越来越受欢迎,并带来极端的生理挑战.
- 超级马拉松完成的急性心血管影响尚未得到充分了解.
- 了解这些影响对于跑者安全和健康管理至关重要.
研究的目的:
- 为了研究161公里小径超级马拉松对中枢动脉硬性和血液动力学的急性影响.
- 为了评估赛后心血管标志物和肌肉损伤的变化.
主要方法:
- 在2023年西部州耐力跑的41名参与者在比赛前后进行了评估.
- 测量包括带 - 骨脉冲波速度 (cf-PWV),脉冲波分析和血清肌酸酶 (CK) 活性.
- 从中央血压波形计算出心下活力比率 (SEVR).
主要成果:
- 赛后没有观察到cf-PWV (中枢动脉硬) 的显著变化.
- 静缩和静缩血压在比赛后显著下降,这表明运动后的低血压.
- 赛后,增强指数,反射幅度和SEVR都降低了,而CK水平急剧增加,表明肌肉损伤.
结论:
- 完成161公里长的超级马拉松赛并没有急剧增加中枢动脉硬度.
- 发生显著的肌肉损伤,伴随着血压降低和心肌 perfusion 指标.
- 参与超级马拉松似乎对心血管健康产生了最小的负面急性影响,尽管极度劳累.
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