一个人工神经网络来估计静态举重活动期间的详细主动-被动脊柱负荷,用于标准化人类测量
Hassan Mohammadi1, Navid Arjmand1
1Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran.
Journal of biomechanics
|December 12, 2025
概括
一个新的人工神经网络 (ANN) 从复杂的生物机械模型准确预测脊柱负荷. 这种快速的工具有助于职业风险评估和脊柱负荷的生物力学评估.
科学领域:
- 生物力学 生物力学
- 职业健康 职业健康 职业健康
- 人工智能的人工智能
背景情况:
- 肌肉骨模型简化了脊柱关节,限制了准确的负载共享预测.
- 现有的模型很难估计椎间盘,面关节和带的力量.
- 综合性脊柱模型需要大量的时间和技能.
研究的目的:
- 训练一个人工神经网络 (ANN) 来复制来自结合肌肉骨有限元素脊柱模型的输出.
- 开发一种更快,更实用的工具,用于在静态提升任务中估计脊柱负荷.
- 为了使被动脊柱模型能够实现现实的干部肌肉负荷场景.
主要方法:
- 使用结合的肌肉骨有限元模型生成训练数据集,模拟500个静态举重任务.
- 多样化的手负荷,位置,车身曲和腰骨比率.
- 训练了一名ANN来预测T12-S1内部压力,圆环应力,磁盘负荷,面力,带力和肌肉力.
主要成果:
- 该ANN准确地将模型输入映射到83个输出,正常化-根-平均-平方-误差<3%和R2>0.98.
- 布兰德-阿尔特曼分析显示,没有一致的偏见,并且达成一致的界限很窄,约为95%.
- 举例:对于L4-L5内压的0.1 MPa协议极限.
结论:
- 经过培训的ANN是职业脊柱负荷风险评估的快速和实用的工具.
- 在被动的有限元素脊柱模型中,ANN可以提供现实的干肌负荷.
- 这种方法增强了生物力学评估和风险评估计划.
相关概念视频
Higher Mental Functions of the Brain: Language
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Cerebral Hemispheres
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
Lateralization
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
Language and Cognition
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
Learning Disabilities
Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
Dyslexia is a...
Dyslexia
Dyslexia is a...


