一项试点研究评估了老年人与没有肉类症之间肌肉组织和和血流的差异
Marni E Shoemaker1, Suzette L Pereira2, Vikkie A Mustad3
1College of Education and Human Sciences, South Dakota State University, Brookings, SD, United States.
Frontiers in endocrinology
|October 10, 2025
概括
萨科佩尼亚与肌肉血流和氧气使用的减少有关,影响肌肉功能. 改善血流的干预措施可能有助于减轻与年龄相关的代谢功能障碍.
科学领域:
- 运动生理学 运动生理学
- 衰老研究研究 衰老研究
- 营养科学 营养科学
背景情况:
- 适当的氧气运输和营养物质的输送对于骨肌肉功能至关重要.
- 衰老和肌肉质量减少可以降低肌肉血液流动和营养供应.
- 标志着肌肉损失的萨科佩尼亚可能会加剧这些与年龄相关的循环问题.
研究的目的:
- 为了研究非sarcopenic和sarcopenic老年人之间的肌肉氧气利用和血液流量的差异.
- 为了比较这些在食前和食后状态的生理反应.
- 为了检查在有氧和无氧运动条件下的反应.
主要方法:
- 研究了10名非sarcopenic和8名sarcopenic的老年人.
- 近红外光谱仪 (NIRS) 测量了肌肉氧化率 (deoxyHb,THb,TSI) 在饭前,饭后和运动期间.
- 血红蛋白和髓红蛋白的变化正常化为脂肪组织厚度 (ΔdeoxyHbATT, ΔTHbATT).
主要成果:
- 与sarcopenic个体相比,非sarcopenic个体显示出明显更大的食后肌肉血流 (ΔTHbATT).
- 在有氧运动期间,非sarcopenic个体保持较高的肌肉组织氧和指数 (TSI).
- 无氧运动揭示了两组之间鲜明的血液流动和氧化模式,而肉眼的个体显示的变化较小.
结论:
- 萨科佩尼亚与肌肉氧化能力和血液流量下降有关,NIRS可以检测到.
- 在午餐后和运动期间的NIRS反应在sarcopenic和非sarcopenic个体之间存在显著差异.
- 需要有针对性的营养和运动干预措施来增强肌肉血液流动,并对抗与年龄相关的肉症和代谢功能障碍.
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