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人类骨肌具有可逆蛋白质组特征和在反复抵抗训练后保留的蛋白质组记忆
Juha J Hulmi1, Eeli J Halonen1, Adam P Sharples2
1Faculty of Sport and Health Sciences, Neuromuscular Research Center, University of Jyväskylä, Jyväskylä, Finland.
The Journal of physiology
|April 4, 2025
概括
抵抗训练 (RT) 可以在骨肌肉中创建持久的蛋白质记忆. 即使在停止训练后,参与肌肉生长和功能的关键蛋白质仍然保持高水平,证明了生物记忆.
科学领域:
- 运动生理学 运动生理学
- 分子生物学分子生物学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 骨肌肉通过蛋白质合成适应抵抗训练 (RT).
- 这些适应在训练后的持久性,称为肌肉记忆,在蛋白质层面上还不完全理解.
研究的目的:
- 研究骨肌肉蛋白质对抵抗训练,解训和再训练循环的反应.
- 为了识别在经过一段时间的训练后表现出保留适应 (蛋白质记忆) 的蛋白质.
主要方法:
- 30名健康参与者接受了为期10周的抵抗训练 (RT1),随后进行了10周的脱训 (DT) 和10周的再训练 (RT2).
- 用质谱法 (dia-PASEF) 分析骨肌肉活检,以评估每个阶段的蛋白质组变化.
- 对照组经历了10周的脱期,随后是20周的RT.
主要成果:
- 第一个RT期显著改变了150种蛋白质,主要涉及能量代谢和蛋白质加工.
- 在第二个RT期 (RT2) 之后,蛋白质组适应是可重复的,反映了RT1.1后观察到的变化.
- 许多RT诱导的蛋白质在解除训练后恢复到基线,但包括碳基还原酶1 (CBR1) 和calpain-2 (CAPN2) 在内的几个蛋白质仍然升高,表明保留了适应性.
结论:
- 在人类中重复的抵抗训练,即使有间接的脱训,也会显示出时间蛋白签名和可重复的蛋白质基因适应.
- 骨肌肉表现出潜在的蛋白质记忆,在训练后特定的蛋白质仍然存在,这表明肌肉记忆的分子基础.
- 参与有氧能量代谢的蛋白质在很大程度上是可逆的,而与肌肉收缩和结合相关的蛋白质则显示出更大的保留.
关键词:
在CAPN2的基础上,CAPN2是CAPN2.一个CBR1的CBR1.卡尔帕因-2-2 的情况.解车 解车 解车 解车过度缩的过度缩是一个问题.肌肉记忆 肌肉记忆 肌肉记忆蛋白质组学 蛋白质组学更多相关视频
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