Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue. 
Anchoring junctions mechanically attach a cell to the...
Support Reactions01:30

Support Reactions

A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
The purpose of the supports is to prevent the translational motion of the system by applying an equal and opposite force and to prevent the system's rotation by applying a...
Rolling Resistance01:21

Rolling Resistance

When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down due to...
Response Surface Methodology01:16

Response Surface Methodology

Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
Hydrostatic Pressure Force on a Plane Surface01:04

Hydrostatic Pressure Force on a Plane Surface

When a plane surface is submerged in a fluid, hydrostatic forces develop on the surface due to the fluid's pressure. For horizontal surfaces, the pressure exerted by the fluid is uniform because the depth remains constant. The resultant force is determined by the pressure at the given depth multiplied by the area of the surface, and it acts through the centroid of the surface. For vertical surfaces, the pressure varies with depth, increasing as the distance from the fluid's free surface...
Application of Linearization and Approximation01:29

Application of Linearization and Approximation

A drone flying through complex terrain often relies on more than one sensing method to estimate small changes in altitude. Along with direct measurements, air pressure provides a useful indirect indicator of vertical movement. Atmospheric pressure decreases as altitude increases, and this relationship is commonly described using an exponential model. Although accurate, converting pressure measurements into altitude values requires calculations that are too complex to perform repeatedly during...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

One Night of Acute Sleep Deprivation Alters Running Biomechanics and Running Economy in Recreational Runners.

Medicine and science in sports and exercise·2026
Same author

Physiological responses during a maximal dry static breath-hold in a world champion freediver.

Respiratory physiology & neurobiology·2026
Same author

Baseline functional status impacts patient-perceived resolution following rehabilitation for Achilles tendinopathy.

Journal of biomechanics·2026
Same author

Prevalence and Severity of Self-Assessed Hallux Valgus in Community-Dwelling Older South African and Flemish Individuals.

Journal of foot and ankle research·2026
Same author

Reducing ED Boarding Time as the Key to Minimizing Admission Delays: A Quality Improvement Initiative.

American journal of medical quality : the official journal of the American College of Medical Quality·2026
Same author

Body anthropometry affects spatiotemporal preferences in walking and running.

The Journal of experimental biology·2026

相关实验视频

Updated: May 12, 2026

Kinematics and Ground Reaction Force Determination: A Demonstration Quantifying Locomotor Abilities of Young Adult, Middle-aged, and Geriatric Rats
10:28

Kinematics and Ground Reaction Force Determination: A Demonstration Quantifying Locomotor Abilities of Young Adult, Middle-aged, and Geriatric Rats

Published on: February 22, 2011

19.7K

使用机器学习预测运行时垂直地面反应力特征.

Sieglinde Bogaert1, Jesse Davis2, Benedicte Vanwanseele1

  • 1Human Movements Biomechanics Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium.

Frontiers in bioengineering and biotechnology
|October 23, 2024
PubMed
概括

这项研究引入了一种机器学习方法,使用圣骨加速来预测与跑步相关的受伤风险因素. 这种方法提供了一种实用的方法,可以在控制实验室设置之外运行时监测生物力学负载.

关键词:
活跃峰值是一个活跃的峰值.联系时间 联系时间冲击峰值是影响的峰值.这是一种冲动的冲动.惯性测量单位是一种惯性测量单位.机器学习是机器学习.跑步 跑步 跑步 跑步 跑步 跑步垂直地面反应力是指垂直的地面反应力.

更多相关视频

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

8.7K
Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running
06:35

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running

Published on: September 14, 2017

9.1K

相关实验视频

Last Updated: May 12, 2026

Kinematics and Ground Reaction Force Determination: A Demonstration Quantifying Locomotor Abilities of Young Adult, Middle-aged, and Geriatric Rats
10:28

Kinematics and Ground Reaction Force Determination: A Demonstration Quantifying Locomotor Abilities of Young Adult, Middle-aged, and Geriatric Rats

Published on: February 22, 2011

19.7K
Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

8.7K
Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running
06:35

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running

Published on: September 14, 2017

9.1K

科学领域:

  • 生物力学 生物力学
  • 运动医学 运动医学
  • 机器学习 机器学习

背景情况:

  • 与跑步相关的伤害 (RRI) 是常见的,通常源于肌肉骨负荷失衡.
  • 地面反应力 (GRF) 估计生物力学负载,但通常是在实验室测量.
  • 便携式传感器和机器学习为现实世界伤害风险监测提供了潜力.

研究的目的:

  • 开发和评估一个机器学习模型,该模型可以从十字加速中预测关键的垂直GRF特征.
  • 评估模型在估计与跑步相关伤害相关的参数方面的准确性.

主要方法:

  • 利用来自跑步者的三维圣骨加速数据.
  • 训练有素的机器学习模型预测垂直GRF参数:接触时间,活跃峰值,冲击峰值和冲动.
  • 将模型性能与基线和既定方法进行比较.

主要成果:

  • 这些模型准确地预测了活跃峰值 (0.080 BW RMSE),撞击峰值 (0.198 BW RMSE),冲动 (0.0073 BWs RMSE) 和接触时间 (0.0101s RMSE).
  • 拟议的机器学习方法与现有方法相比显示出更高的性能.
  • 获得了0.080BW的活跃峰值的平方根平均误差,0.198BW的冲击峰值,0.0073BW的冲动,和0.0101s的接触时间.

结论:

  • 圣器加速可以有效地使用机器学习来预测运行时重要的GRF指标.
  • 这种方法显示了对生物力学负载的非侵入性实时监测的前景,以帮助预防与跑步相关的伤害.
  • 这些发现表明,对于运动员和临床医生来说,在动态的跑步环境中评估受伤风险因素是一个有价值的工具.