床上休息和固定对肌内和肌间脂肪组织的影响:系统性审查
Konstantinos Prokopidis1, Julia Margarita Reyes2,3, Gustavo Duque2,4
1Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.
Experimental physiology
|February 23, 2026
概括
肌肉在床上休息或固定时不使用,肌肉内脂肪 (IntraMAT) 和肌肉间脂肪 (InterMAT) 增加,特别是在背部和四肢. 这种脂肪透是卸载的关键适应.
科学领域:
- 运动生理学 运动生理学
- 肌肉生物学 肌肉生物学
- 代谢健康 代谢健康
背景情况:
- 肌肉不使用,由于床上休息或固定,导致肌肉缩和胰岛素抵抗.
- 肌肉内脂肪 (IntraMAT) 和肌肉间脂肪 (InterMAT) 积累的增加可能是这些负面影响的基础.
研究的目的:
- 系统地审查关于床上休息和单边下肢固定对健康成年人的IntraMAT和InterMAT影响的证据.
主要方法:
- 根据PRISMA指南进行了系统审查,搜索主要数据库直到2025年7月.
- 包括的研究是健康成年人 (≥18岁) 的临床试验,结果为IntraMAT和InterMAT.
- 数据提取和偏差评估由两名审稿人进行;使用了叙事合成.
主要成果:
- 床上休息显著增加了腰部肌肉 (多,直立脊柱,四腰部肌肉) 中的IntraMAT.
- 下肢不动化对小牛的IntraMAT有不一致的影响,但增加了大腿的IntraMAT (28天后12.8%).
- 在腰部区域和固定大腿和小腿肌肉中,InterMAT增加.
结论:
- 从床上休息或固定运动中减少肌肉的使用,促进了局部特定的IntraMAT和InterMAT的增加.
- 腰部区域尤其受到影响,这表明肌肉脂肪透是卸载的关键适应.
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