强度体育训练对耐力运动员左心室血动力学力量的影响:特征追踪心脏磁共振研究
Yeltay Rakhmanov1, Dinara Jumadilova1, Bauyrzhan Toktarbay1
1Nazarbayev University School of Medicine, Astana, KAZAKHSTAN.
Medicine and science in sports and exercise
|March 14, 2025
概括
在运动员中,强度体育训练显著增加左心室 (LV) 血液动力力 (HDF),特别是在早期心缩期间. 这些变化发生在没有改变LV体积或质量的情况下,表明结构改造之外的适应.
科学领域:
- 心脏病学 心脏病学
- 运动医学 运动医学
- 身体生理学 身体生理学
背景情况:
- 运动员经常经历强烈的体育训练方案.
- 了解训练对心脏功能的影响对于表现和健康至关重要.
- 左心室血动力学力 (HDF) 反映了心脏内部的机械应力.
研究的目的:
- 研究强度体育训练对专业耐力运动员左心室 (LV) 血液动力力 (HDF) 的影响.
- 为了确定训练诱导的HDF变化是否与心脏重塑有关.
主要方法:
- 心脏磁共振成像 (CMR) 被用于评估40名专业耐力运动员.
- 测量是在休赛季和训练高峰期后进行的.
- 分析了LV HDF,体积,质量和应变参数.
主要成果:
- 强度训练在整个心脏周期中显著增加了纵向和横向LV HDF.
- 在早期心缩时,心缩HDF和血液动力学工作 (AUC) 的峰值在训练后显著增加.
- 没有观察到LV体积,射出分数,质量或应变参数的显著变化.
结论:
- 强烈的体力训练会提高左心室 (LV) 血液动力力 (HDF),特别是在早期的缩.
- 这些适应发生的独立于心脏几何或质量的变化.
- 这些发现表明运动员的心脏对训练压力的功能性适应.
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