局部被动热疗的六周引起了一些类似于运动的阻力动脉功能的改善
Jamie P Kaluhiokalani1, Taysom E Wallace1, Mohadeseh Ahmadi1
1Department of Exercise Sciences, Brigham Young University, Provo, UT, USA.
The Journal of physiology
|July 15, 2024
概括
被动热疗 (PHT) 改善了抵抗动脉功能,类似于健康成年人的运动训练. 然而,PHT并没有提高运动表现,与运动训练不同.
科学领域:
- 身体生理学 身体生理学
- 运动科学 运动科学
- 治疗方法 治疗方法
背景情况:
- 许多人由于身体限制或耐受性较低而无法炼.
- 需要使用替代方法来改善这些人群的血管功能.
- 被动热疗 (PHT) 是一种潜在的非运动干预.
研究的目的:
- 为了比较局部被动热疗法 (PHT) 与运动训练 (EX) 对阻力动脉功能,运动血液动力学和性能的影响.
- 评估PHT作为个人无法炼的替代品.
- 为了研究内皮氧化合成酶 (eNOS) 和血管生成的变化.
主要方法:
- 34名健康成年人被随机分配给PHT,假热或EX6周.
- 在被动腿部运动和膝盖伸展 (KE) 炼期间,使用多普勒超声波测量腹动脉血流.
- 肌肉活检评估了eNOS表达和血管生成.
主要成果:
- 在被动腿部运动期间,PHT和EX都增加了血流的峰值.
- 在KE运动期间的血流峰值增加了EX,但不是PHT或假的.
- 在KE运动期间的峰值血管导电量在PHT和EX组都增加.
- KE峰值功率与EX显著增加,但不是PHT或假的.
- 在PHT和EX组中,eNOS表达增加,而血管新生仅在EX组中增加.
结论:
- 局部PHT有效地改善了静止和运动期间的阻力动脉功能,与运动训练相似.
- PHT不会显著改善运动表现或诱导血管生成.
- 在有运动限制的个体中,PHT是改善血管功能的可行的替代方案.
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