脊椎骨的分数与尾肌瘦质量有关吗?
Lora M Giangregorio1, Mackenzie Ryann Alexiuk2,3, Navdeep Tangri2,3
1University of Waterloo and Schlegel-UW Research Institute for Aging, Waterloo, Canada. lora.giangregorio@uwaterloo.ca.
尾肌瘦质量指数 (ALMI) 与40岁以上成年人尾骨分数 (TBS) 有关. 更高的ALMI与更好的TBS有关,这表明肌肉质量和骨健康之间存在联系.
科学领域:
- 老年学和骨健康问题
- 肌肉骨生理学 肌肉骨生理学
- 医学成像和诊断 医学成像和诊断
背景情况:
- 脊椎骨评分 (TBS) 是一个公认的骨折的独立风险因素.
- 肌肉对骨的机械负荷是骨形成 (骨质生成) 的一种拟议刺激.
研究的目的:
- 为了研究尾肌肉质量指数 (ALMI) 和尾骨评分 (TBS) 之间的关联.
- 为了确定ALMI评估的肌肉质量是否与TBS测量的骨微架构相关.
主要方法:
- 来自曼尼托巴DXA注册表 (n=60,196) 的数据分析,包括40岁及以上的个人.
- 使用DXA数据估计ALMI,瘦肉量指数 (LMI) 和脂肪量指数 (FMI).
- 使用线性和逻辑回归模型,根据年龄,性别,FMI和组织厚度进行调整.
主要成果:
- 在调整年龄和性别后,在ALMI和TBS之间发现了显著的积极关联.
- 当进一步调整为FMI和腹部组织厚度 (β=0.058,p<0.001) 时,这种关联得到了加强.
- 在ALMI中增加1kg/m2相当于TBS增加0.058,约占TBS平均值的4.7%.
结论:
- 尾肌瘦质量指数 (ALMI) 与40岁及以上成年人尾骨分数 (TBS) 独立相关.
- 研究结果表明,肌肉质量和骨结构完整性之间存在联系,独立于脂肪质量和年龄.
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