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

Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

391
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
391
Kinematic Equations: Problem Solving01:15

Kinematic Equations: Problem Solving

12.5K
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the appropriate kinematic equations to solve for the unknowns. Either one or two kinematic equations are needed to solve for the unknowns, depending on the known and unknown quantities. Generally, the number of equations required is the same as the number of unknown quantities in the given example. Two-body pursuit problems always require two...
12.5K
Kinematic Equations - II01:17

Kinematic Equations - II

9.6K
The second kinematic equation expresses the final position of an object in terms of its initial position, the distance traveled with the initial constant velocity, and the distance traveled due to a change in velocity. Similar to the first kinematic equation, this equation is also only valid when the acceleration is constant throughout the motion of an object.
Suppose a car merges into freeway traffic on a 200 m long ramp. If its initial velocity is 10 m/s and it accelerates at 2 m/s2, then the...
9.6K
Kinematic Equations - I01:26

Kinematic Equations - I

10.7K
When an object moves with constant acceleration, the velocity of the object changes at a constant rate throughout the motion. The kinematic equations of motions are derived for such cases where the acceleration of the object is constant. The first kinematic equation gives an insight into the relationship between velocity, acceleration, and time. We can see, for example:
10.7K
Kinematic Equations - III01:18

Kinematic Equations - III

7.7K
The first two kinematic equations have time as a variable, but the third kinematic equation is independent of time. This equation expresses final velocity as a function of the acceleration and distance over which it acts. The fourth kinematic equation does not have an acceleration term and provides the final position of the object at time t in terms of the initial and final velocities. This equation is useful when the value of the constant acceleration is unknown.
Using the kinematic equations,...
7.7K
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

379
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
379

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

Pacinian Corpuscle Distribution, Density, and Morphology of the Adult Human Foot in Health and Diabetes: A Scoping Review.

The international journal of lower extremity wounds·2026
Same author

Quantification of the Mechanical Response of the Plantar Fascia to Changes in Rearfoot Position.

Journal of the American Podiatric Medical Association·2026
Same author

Movement Related Biomechanics in Adolescent Idiopathic Scoliosis: A Review of Reviews.

Studies in health technology and informatics·2026
Same author

Educational Attainment and Diabetic Foot Ulceration: Outcomes From the Barbados Diabetic Foot Study.

International wound journal·2026
Same author

Acute Effects of Adding Self-Control Tasks to the Daily Mile on Subsequent Cognition and Enjoyment in Children.

Healthcare (Basel, Switzerland)·2026
Same author

Associations Between Anthropometric Characteristics, Self-Reported Musculoskeletal and Visceral Symptoms, and Squat Movement Quality: A Cross-Section Study.

Journal of functional morphology and kinesiology·2026

相关实验视频

Updated: Jul 21, 2025

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
08:08

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis

Published on: May 8, 2014

16.8K

固定座椅划船的动力学:一个结构化的合成.

Tonio P Agius1, Dario Cerasola2,3, Michael Gauci4

  • 1Department of Physiotherapy, Faculty of Health Sciences, University of Malta, MSD 2080 Msida, Malta.

Bioengineering (Basel, Switzerland)
|July 29, 2023
PubMed
概括

固定座位划船涉及比滑动座位划船更大的胸部运动. 这种生物力学分析为固定座位划船员的技术和伤害预防提供了洞察力.

关键词:
生物力学 生物力学沿海划 在海岸划.固定座位的划船 固定座位的划船动力学是动力学.运动分析分析运动分析.划船 划船 划船 划船 划船运动运动运动运动运动.

更多相关视频

Controlled Rotation of Human Observers in a Virtual Reality Environment
09:11

Controlled Rotation of Human Observers in a Virtual Reality Environment

Published on: April 21, 2022

2.6K
Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-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

10.3K

相关实验视频

Last Updated: Jul 21, 2025

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
08:08

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis

Published on: May 8, 2014

16.8K
Controlled Rotation of Human Observers in a Virtual Reality Environment
09:11

Controlled Rotation of Human Observers in a Virtual Reality Environment

Published on: April 21, 2022

2.6K
Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-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

10.3K

科学领域:

  • 生物力学 生物力学
  • 运动科学 运动科学 运动科学
  • 人类运动分析 人类运动分析

背景情况:

  • 滑动座位划船研究得很好,但固定座位划船动力学仍未得到充分研究.
  • 了解固定座位划船生物力学对于技术优化和伤害预防至关重要.

研究的目的:

  • 记录和分析固定座位划船的特定动力学.
  • 为了比较固定座位划船技术与滑动座位划船.
  • 为基于证据的固定座位划船培训计划提供基础.

主要方法:

  • 经验丰富的固定座位划船者在生物力学实验室中进行了划船.
  • 使用反射标记器 (修改的海伦-海斯模型) 捕捉运动.
  • 数据与滑动座椅人体表划船和观测数据进行了比较.

主要成果:

  • 固定座位划船表现出明显更大的胸部运动 (75-77°) 与滑动座位划船 (44-52°) 相比.
  • 身体上部倾斜源于骨盆旋转,而不是脊柱运动.
  • 在固定座位划船 (30-35°) 中,膝盖曲不那么明显,但与滑动座位划船相比显著.

结论:

  • 固定座位划船的独特动力学解释了与滑动座位划船相比,背部受伤的风险相当.
  • 详细的生物力学数据可以为固定座位划船者提供有针对性的培训计划.
  • 这项研究提供了可复制的方法来分析固定座位划船技术.