心脏功能适应抗力和耐力炼训练:一个随机交叉研究
Daniel J Green1, Channa E Marsh1, Hannah J Thomas1,2
1School of Human Sciences, Exercise and Sport Science, The University of Western Australia, Perth, Western Australia, Australia.
American journal of physiology. Heart and circulatory physiology
|February 9, 2024
概括
耐力训练改善了心脏扩张功能和左心房体积,而抵抗训练增加了左心室质量. 两种运动模式都没有在健康个体中显著改变缩功能.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 心脏适应的过程
背景情况:
- 很少有研究比较不同运动方式对心脏的影响.
- 了解运动引起的心脏适应对于优化训练方案至关重要.
研究的目的:
- 研究耐力 (END) 和抗力 (RES) 训练对左心室 (LV) 缩和放缩功能的不同影响.
- 为了比较健康成年人的END和RES培训之间的心脏结构和功能变化.
主要方法:
- 随机交叉试验与64名健康参与者.
- 12周的END和12周的RES培训,分开12周的洗期.
- 心声学评估了LV质量,射出分数 (EF),全球纵向应变 (GLS),中心早期速度 (E),组织多普勒速度 (e'),E/e'比率,以及左心房体积与身体表面积 (LA ESVi) 的索引.
主要成果:
- 无论是 END 还是 RES 训练都增加了 LV 质量 (LVM);根据瘦身质量 (LVMi) 调整后的 LVM 仅在 END 之后才显著.
- 耐力训练改善了透缩功能 (减少了E/e) 并增加了LA ESVi.
- 抵抗训练增加了LVM,但没有显著改变透缩功能或LA ESVi.
- 无论是END还是RES培训都没有显著影响EF或GLS.
结论:
- 心脏的结构和透气功能适应运动是特定于模式的.
- 耐力训练可以增强腹功能和左心房体积,而抗力训练主要增加左心室质量.
- 在健康个体的耐力和抵抗训练后,缩功能保持不变.
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