预测从惯性测量单元运行中的组织负荷
John Rasmussen1, Sebastian Skejø2,3, Rasmus Plenge Waagepetersen4
1Department of Materials and Production, Aalborg University, Fibigerstraede 16, 9220 Aalborg East, Denmark.
Sensors (Basel, Switzerland)
|December 23, 2023
概括
智能手表传感器在预测与跑步相关的组织负荷方面表现有前途,可能会防止受伤. 需要进一步的研究来完善这些生物力学预测,以便广泛使用.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 可穿戴技术可穿戴技术
背景情况:
- 在跑步者中,重复负荷伤害很常见.
- 跑步者经常使用带有惯性测量单元 (IMU) 传感器的智能手表.
- IMU数据可以提供有关组织负荷的见解,以防止受伤.
研究的目的:
- 调查使用IMU数据来预测跑步者的组织负荷的潜力.
- 评估为此预测使用基于物理和基于数据的模型的可行性.
主要方法:
- 使用了基于物理的模拟和基于数据的方法.
- 分析了76名跑步者的285次跑步试验数据.
- 弹性网和梯度增强模型经过训练和测试,以预测阿基里斯肌和关节带的力量.
主要成果:
- 带关节 (高达0.95) 和阿基里斯肌 (0.71) 的预测和模拟力之间发现了很高的相关性.
- 没有一个单一的预测算法始终超过其他算法.
- 这项研究突出了预测准确性的潜力,但也突出了预测准确性的变化.
结论:
- 使用身体安装的IMU预测组织负载是跑步者的伤害预防的一个有希望的途径.
- 在这项技术可以广泛应用于跑步手表之前,需要进一步的研究.
- 改进算法和验证模型是关键的下一步.
相关概念视频
Distributed Loads
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
Load along a Single Axis
In structural engineering, the analysis of beams subjected to varying loads is a critical aspect of understanding the behavior and performance of these structural elements. A common scenario involves a beam subjected to a combination of different load distributions.
Consider a beam of length L subjected to a varying load, which is a combination of parabolic and trapezoidal load distribution along the x-axis. In this case, it is essential to determine the resultant loads, their locations, and...
Consider a beam of length L subjected to a varying load, which is a combination of parabolic and trapezoidal load distribution along the x-axis. In this case, it is essential to determine the resultant loads, their locations, and...
Distributed Loads: Problem Solving
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
Relation Between the Distributed Load and Shear
Understanding the relationship between the distributed load and shear force in structural analysis is crucial for analyzing beams subjected to various loading conditions. Consider the case of a beam experiencing a distributed load, two concentrated loads, and a couple moment.
Resultant of a General Distributed Loading
While designing structures exposed to non-uniform loads, it is crucial to consider the resultant force and its location. This resultant force is a single vector representing the net force applied due to the distributed load.
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
Multimachine Stability
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:


