儿童的体段惯性参数来自3D身体扫描的大数据库
Bhrigu K Lahkar1, Thomas Robert2, Fermín Basso3
1Kinesiology for Assessment of Sports, Health and Injury (KASHI) Lab, School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi, India.
Journal of biomechanics
|July 3, 2025
概括
这项研究使用3D扫描开发了儿童体段惯性参数 (BSIP) 的回归模型. 这些模型为儿科生物力学分析和运动研究提供了至关重要的准确估计.
科学领域:
- 生物力学 生物力学
- 人类运动分析 人类运动分析
- 儿科生理学 儿科生理学
背景情况:
- 准确的体段惯性参数 (BSIP) 对于人类运动分析至关重要.
- 现有的BSIP儿童数据有限,阻碍了儿科生物力学研究.
研究的目的:
- 开发回归模型来估计儿科BSIP (质量,质量中心位置,惯性时刻).
- 利用来自大量儿童的3D身体扫描数据进行个性化BSIP计算.
- 为儿童特定的生物力学分析提供全面的数据集和模型.
主要方法:
- 获得688名儿童 (年龄为2.9-12.7岁) 的3D身体扫描.
- 处理扫描以创建个性化的体积网格和计算3DBSIP.
- 开发了BSIPs的规范化回归模型,按性别分层.
主要成果:
- 回归模型显示了对正常化质量的高精度和对正常化质量中心和旋转半径的中等到良好的精度.
- 观察到与年龄相关的正常化质量变化,质量中心位置,以及身体各个部分的旋转半径.
- 确定了特定的趋势,例如腹部COM的后部转移和大腿COM的前部转移.
结论:
- 本研究提出了第一个全面的BSIP回归模型,用于一个大规模的,性别平衡的儿科队列.
- 自动化方法和详细的回归解决了先前儿科生物力学研究的重大局限性.
- 这些发现预计将大大推进儿科生物机械建模和运动分析.
相关概念视频
01:24Inertia Tensor
680
The concept of the inertia tensor is employed to depict the mass distribution and rotational inertia of a solid or rigid object. This tensor is expressed through a three-by-three matrix. Each component within this matrix corresponds to varying moments of inertia about specific axes.
The diagonal components of the inertia tensor matrix represent the moments of inertia concerning the principal axes of the object. These primary axes are defined as the axes where the object experiences the least...
The diagonal components of the inertia tensor matrix represent the moments of inertia concerning the principal axes of the object. These primary axes are defined as the axes where the object experiences the least...
680
01:06Body Planes
24.2K
Body planes in anatomy are imaginary flat surfaces used as reference points to divide the body into sections for anatomical study. These planes are essential for understanding the orientation, relationships, and spatial organization of anatomical structures.
The sagittal plane is the plane that divides the body or an organ vertically into right and left sides. If this vertical plane runs directly down the middle of the body resulting in equal division, it is called the midsagittal or median...
The sagittal plane is the plane that divides the body or an organ vertically into right and left sides. If this vertical plane runs directly down the middle of the body resulting in equal division, it is called the midsagittal or median...
24.2K