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相关概念视频

Stability of Equilibrium Configuration: Problem Solving01:13

Stability of Equilibrium Configuration: Problem Solving

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The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
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Rigid Body Equilibrium Problems - II01:21

Rigid Body Equilibrium Problems - II

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A rigid body is in static equilibrium when the net force and the net torque acting on the system are equal to zero.
Consider two children sitting on a seesaw, which has negligible mass. The first child has a mass (m1) of 26 kg and sits at point A, which is 1.6 meters (r1) from the pivot point B; the second child has a mass (m2) of 32 kg and sits at point C. How far from the pivot point B should the second child sit (r2) to balance the seesaw?
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A Vibrotactile Feedback Device for Seated Balance Assessment and Training
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机器制造的基于扰动的平衡训练装置的设计和性能分析

Jaison Jacob Mathunny1, Hari Krishnan S1, Ashokkumar Devaraj1

  • 1Department of Biomedical Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India.

Applied bionics and biomechanics
|April 8, 2024
PubMed
概括

这项研究介绍了一种用于防摔的新型机械制造平衡训练装置. 该设备有效模拟跌倒,显示负载依赖的运动和一致加速的影响,有助于提高运动技巧.

科学领域:

  • 生物力学 生物力学
  • 康复工程 康复工程 康复工程
  • 神经科学是一个神经科学.

背景情况:

  • 对于神经系统疾病和老年人来说,跌倒是一个主要问题,导致严重的发病率.
  • 提高运动适应能力对于有效的防摔策略至关重要.
  • 现有的平衡训练方法可能无法充分模拟现实世界的落场景.

研究的目的:

  • 提出和评估一种基于扰动的机械制造平衡训练装置.
  • 评估该设备在改善预防跌倒的运动适应能力方面的有效性.
  • 为了研究不同负载和加速度对设备性能的影响.

主要方法:

  • 开发了一种基于机械轮的扰动训练装置.
  • 结合多方向落模拟和修改的约束诱导运动治疗原则.
  • 与10名受试者进行的试点研究,测量了在不同静态负载 (20-40公斤) 和输入加速度 (1-3米/秒2) 下的行驶距离和峰值加速度.
  • 使用重复测量的统计分析ANOVA和Bonferroni的后期测试.

主要成果:

  • 观察到负载依赖的行驶距离减少,在20公斤和40公斤负载之间存在显著差异.
  • 该设备在不同的负载中始终实现了接近预期的峰值加速,这表明了有效的扰动诱导.

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  • 发现了显著的横向运动偏好,这表明了优化潜力.

    • 结论:

    • 机械制造的扰动装置显示出增强平衡和运动适应性在防摔方面具有前景.
    • 该设备在不同负载下提供一致扰动的能力支持其在康复中使用.
    • 对控制参数的进一步调整可以优化横向移动的性能和用户体验.