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相关概念视频

Ankle Joint01:10

Ankle Joint

1.8K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
1.8K

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相关实验视频

Updated: Sep 8, 2025

A Mouse Model of Ankle-Subtalar Complex Joint Instability
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长期关节不稳定与走路时关节负荷相关的结果

Jaeho Jang1, J Troy Blackburn2, Joshua N Tennant3

  • 1Department of Kinesiology, University of Texas at El Paso.

Journal of athletic training
|August 20, 2025
PubMed
概括
此摘要是机器生成的。

慢性脚不稳定 (CAI) 与关节负荷的改变有关. 这项研究发现了脚关节接触力和步态生物力学之间的关联,这表明CAI的潜在治疗目标.

关键词:
打开Sim联合接触力肌肉骨模型

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相关实验视频

Last Updated: Sep 8, 2025

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科学领域:

  • 生物力学
  • 整形医学
  • 运动医学

背景情况:

  • 慢性脚不稳定性 (CAI) 涉及重复的创伤和改变的生物力学,导致异常的关节负荷.
  • 之前的研究表明,与健康个体相比,CAI患者在行走和降落时表现出不同的联合接触力 (JCF) 概况.
  • 关于脚JCF与CAI临床结果之间的关系存在一个知识差距.

研究的目的:

  • 研究 CAI 个体的脚 JCF,结构测量,姿势控制和行走生物力学之间的相互关系.
  • 确定CAI相关的变量是否可以预测脚JCF.

主要方法:

  • 在研究实验室环境中进行的截面研究.
  • 参与者中有21人患有CAI (平均年龄为23±4岁).
  • 测量了脚JCF的三轴峰值,脉冲和负载率,以及后脚对齐,星际出行平衡测试,承重冲刺测试和行走生物力学 (角度和时刻).

主要成果:

  • 较少的压力JCF与更多的后脚直线和更大的峰值逆转时刻有关.
  • 较大的后部JCF与峰值反转和背部屈曲时刻的增加以及较少的后脚相关.
  • 在行走过程中,侧面JCF的增加与更大的背部曲时刻和较少的后脚向对齐有关.

结论:

  • 该研究确定了CAI患者的脚JCF与步态生物力学,结构对齐和姿势控制之间的潜在关联.
  • 需要进行进一步的研究,以探讨针对这些因素的干预措施是否可以在行走过程中改变脚关节的机械负荷.