力量训练改善了心脏功能,在心力衰竭的老鼠中的原蛋白和力量
Leisiane G Dias1, Carlos H O Reis1, Leonardo Dos Santos2
1Experimental Physiology and Biochemistry Laboratory. Physical Education and Sport Center, Federal University of Espirito Santo, Vitoria, Brazil.
The journal of physiological sciences : JPS
|February 16, 2024
概括
在患有心肌梗塞 (MI) 的老鼠中,力量训练 (ST) 改善了性能和心脏功能. 这种运动干预减轻了心脏重塑和肺堵塞,改善了整体心血管健康.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 心脏病理生理学 心脏病理生理学
背景情况:
- 心肌梗塞 (MI) 通常导致心脏重塑,心力衰竭和生活质量下降.
- 身体炼是心血管疾病的公认的非药物治疗方法.
- 力量训练 (ST) 对心脏中风后心脏重塑的具体影响需要进一步研究.
研究的目的:
- 为了研究线性块ST协议在MI的老鼠模型中的作用.
- 评估ST对心脏中风后心脏结构和功能重塑的影响.
主要方法:
- 成年雄性大鼠接受了MI诱导或假手术,随后进行了12周的结构化,渐进的ST计划.
- 用心声学,血液动力学评估和组织学来评估心脏结构和功能.
- 隔离心肌收缩率测量了对各种刺激的反应.
主要成果:
- 力量训练提高了表现,并减少了心脏缩和肺部拥堵在心脏病发作的老鼠.
- 在不改变MI大小的情况下,ST部分阻止了心脏扩张和心室功能障碍.
- 组织学分析显示间歇性纤维化减少,孤立的心脏肌肉表现出改善的收缩性.
结论:
- 在心脏病发作的老鼠中,力量训练提高了载体能力,减轻了心脏重塑和肺部拥堵.
- 在ST后心脏功能的改善部分归因于心肌收缩率的提高.
- ST提供了一个潜在的非药物干预措施,以改善心肌梗塞后的结果.
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