多模态运动捕捉工具箱用于加强对脑和典型发育儿童分段间协调的分析
Ligia Yumi Mochida1, Paulo R P Santiago2, Miranda Lamb3
1Department of Physical Therapy, University of North Florida.
Journal of visualized experiments : JoVE
|January 6, 2026
概括
无标记运动捕捉为分析人类运动提供了经济高效的替代方案,特别是在脑的儿童中. 这项研究表明其可用于临床环境中详细的动力学分析的可行性.
科学领域:
- 生物力学 生物力学
- 人类运动分析 人类运动分析
- 辅助技术 辅助技术 辅助技术
背景情况:
- 基于标记器的运动捕捉是人类运动分析的黄金标准,但对特定人群构成挑战.
- 患有脑和感官处理问题的儿童经常与传统的动力学标记者作斗争.
- 无标记运动捕捉的进步为这些局限性提供了潜在的解决方案.
研究的目的:
- 为了比较基于三维 (3D) 标记器的动作捕捉与用于分析人类运动协调的二维 (2D) 无标记器系统.
- 评估用于研究和临床应用的集成,多式联运运动捕捉工具箱的可行性.
- 提出一种新的,开源的动力学分析方法,以适应有感官处理挑战的患者.
主要方法:
- 开发了一个集成的工具箱,结合了研究级的动力学设备,惯性测量单元,3D无标记和2D无标记系统 (MediaPipe).
- 使用循环图方法 (部-膝盖角-角图) 来分析坐立任务期间的协调模式.
- 在典型发育的儿童和脑儿童中,比较了基于3D标记器的系统与没有2D标记器的系统的动力学数据.
主要成果:
- 证明了集成多式联动捕捉系统用于动力学分析的可行性.
- 无二维标记系统为分析协调模式提供了可行的替代方案,特别是对于具有挑战性的患者群体.
- 循环图的方法被证明是评估运动协调的可靠指标.
结论:
- 多模式运动捕捉系统为各种研究和临床环境提供了灵活性.
- 提出的开源方法解决了传统方法对有感官处理问题的患者的局限性.
- 这项工作通过可访问的动力学分析促进了先进的,个性化的护理计划.
更多相关视频
08:24Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
Published on: August 30, 2016
10.6K
08:45Kinematic Analysis Using 3D Motion Capture of Drinking Task in People With and Without Upper-extremity Impairments
Published on: March 28, 2018
11.3K
相关概念视频
Relative Motion Analysis using Rotating Axes
872
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
872
Absolute Motion Analysis- General Plane Motion
527
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
527
Relative Motion Analysis using Rotating Axes-Problem Solving
693
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
Here, in order to determine the magnitude of velocity and acceleration for point...
693
