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相关概念视频

Bones of the Lower Limb: Femur and Patella01:16

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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
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相关实验视频

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Collection of Skeletal Muscle Biopsies from the Superior Compartment of Human Musculus Tibialis Anterior for Mechanical Evaluation
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人类腿筋肌综合体的断裂点:尸体研究

Gakuto Nakao1, Kazuma Yamagata2, Risa Adachi3

  • 1Professional Post-secondary Course (Physical Therapist), Sapporo Medical Technology, Welfare and Dentistry Professional Training College of Nishino Gakuen School Foundation, Sapporo, Japan; Department of Physical Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Japan.

Journal of the mechanical behavior of biomedical materials
|September 5, 2025
PubMed
概括

这项研究测量了尸体的腿筋肌肉的折断强度. 双腿长头和半膜肌肉的强度和度更高,这解释了它们在跑步时受伤的风险更高.

关键词:
生物力学腿筋机械性能肌肉疲劳破裂情况

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科学领域:

  • 生物力学
  • 肌肉骨研究
  • 运动伤害科学

背景情况:

  • 运动员常常会受到腿筋疲劳的伤害,特别是在跑步的后期摇摆阶段.
  • 人类腿筋肌复合体的精确破裂强度尚不清楚.
  • 了解肌的机械特性对于预防和康复伤害至关重要.

研究的目的:

  • 确定人类腿筋肌复合体的最终拉力强度和机械性能.
  • 为了比较双腿长头,半膜骨和半骨的折断强度和应变特征.
  • 阐明肌肉机械特性与易受压力损伤之间的关系.

主要方法:

  • 为了解剖现实主义而使用了蒂尔的尸体样本.
  • 隔离并测试双腿长头 (BFlh),半膜体 (SM) 和半体 (ST) 肌肉.
  • 使用材料测试机器施加拉伸负荷,测量应变,应力和Young的模量,直到故障.

主要成果:

  • 双腿长头 (BFlh) 和半膜体 (SM) 与半体 (ST) 相比,具有明显较低的断裂应变.
  • BFlh和SM表现出明显更高的破裂应力和Young的模量,表明更大的刚性.
  • 这些发现表明,BFlh和SM的机械特性有助于它们在高拉力负荷下变得脆弱.

结论:

  • 双腿骨的长头和半膜骨在机械上更硬,并且具有比半骨更低的折断力.
  • 这些机械性能差异可能解释了BFlh和SM在像跑步这样的动态活动中受压力伤害的更高发生率.
  • 这项研究为腿筋损伤机制提供了宝贵的见解,并为有针对性的伤害预防策略提供了信息.