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相关概念视频

Normal Strain under Axial Loading01:20

Normal Strain under Axial Loading

Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...

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相关实验视频

Updated: Jun 23, 2026

Induction and Assessment of Exertional Skeletal Muscle Damage in Humans
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一个新的子外部负载动力表的可靠性.

Marc Julia1, Loic Damm2, Simon Pla2

  • 1EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, Montpellier, France; Department of Physical Medicine and Rehabilitation, CHU Montpellier, Univ Montpellier, France.

Journal of biomechanics
|November 4, 2024
PubMed
概括
此摘要是机器生成的。

Cervistab设备可靠地测量部延伸肌肉对突然头部运动的反应,这对于理解和预防橄球头部和部伤害至关重要.

关键词:
宫反射是一种反射.脑震荡是一种脑震荡.头部和部受伤的伤害肌肉 肌肉 肌肉 肌肉橄球是橄球的比赛之一.

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相关实验视频

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科学领域:

  • 生物力学 生物力学
  • 运动医学 运动医学
  • 神经肌肉生理学 神经肌肉生理学

背景情况:

  • 头部和部受伤是橄球中的一个重要问题.
  • 评估部肌肉对干扰的反应对于预防伤害至关重要.
  • 缺乏用于测量部延伸器对曲反应的验证设备.

研究的目的:

  • 为了测试Cervistab装置的可靠性.
  • 评估部延伸肌肉对曲扰动的反应.
  • 评估该设备在了解部稳定性和伤害预防方面的实用性.

主要方法:

  • 使用Cervistab电气装置来创建曲推力加载事件.
  • 12名健康的志愿者参加了7天的测试-重复测试协议.
  • 测量包括肌肉机械延迟和力量发展率在20%和50%的预加载下.

主要成果:

  • 塞维斯塔布在肌肉机械延迟方面表现出良好的可靠性 (ICC 0.81-0.88,CV 3.5%).
  • 力量发展的非反射和反射速率也显示出良好的可靠性 (ICC 0.78-0.89).
  • 布兰德和阿尔特曼的分析表明没有显著的偏差,支持测量的一致性.

结论:

  • 塞维斯塔布 (Cervistab) 装置可提供可靠的测量部延伸肌的反应.
  • 这个设备可以增强对子稳定性神经机械因素的理解.
  • 在橄球中,Cervistab可以帮助预防头部/部伤害,并指导回归比赛的决策.