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相关概念视频

Changes in the Appendicular Skeleton with Age01:09

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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
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Skeletal muscles, the key players in our body's movement, can be classified into two groups based on their location and function: axial muscles and appendicular muscles. These classifications reflect the primary roles the muscles play in the body's structure and movement.
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The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
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Spongy Bone01:09

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All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
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Classification of Bones01:18

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The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
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Bones of the Lower Limb: Tibia and Fibula01:10

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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
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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.

Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
|September 8, 2025
PubMed
概括
此摘要是机器生成的。

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.

关键词:
身体组成 身体组成骨密度测量 骨密度测量 骨密度测量骨折 骨折 骨折 骨折 是一种瘦质量 瘦质量 瘦质量骨质疏松症是一种骨质疏松症.萨尔科佩尼亚是什么意思 萨尔科佩尼亚脊椎骨的骨分数是什么

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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.