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

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

2.2K
The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
2.2K
Bones of the Lower Limb: Tibia and Fibula01:10

Bones of the Lower Limb: Tibia and Fibula

2.8K
The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
2.8K
Bone Disorders01:29

Bone Disorders

3.4K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.4K
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

3.2K
The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.2K
Development of the Limb Synovial Joints01:07

Development of the Limb Synovial Joints

1.3K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.3K
Knee Joint01:23

Knee Joint

1.5K
The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
1.5K

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

Biological, biomechanical, and pain sensitivity effects of walk-run in people with self-reported knee osteoarthritis.

Frontiers in sports and active living·2026
Same author

Rugby tackle kinematics in adolescent players: effects of tackle height and shoulder side.

Sports biomechanics·2026
Same author

Dataset for rapid estimation of femoral neck loading during gait and dynamic exercises.

Scientific data·2026
Same author

Exploring the effects of combined Nordic and reverse Nordic hamstring exercises on physical fitness in prepubertal male soccer players.

Frontiers in sports and active living·2026
Same author

Silent witness: a moss provides important evidence in solving a cemetery crime.

Forensic sciences research·2026
Same author

Magnetic field control with dual robotic tunable magnetic end effectors.

Communications engineering·2026

相关实验视频

Updated: Jun 10, 2025

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

在高冲击活动中下肢关节负荷:对骨健康的影响

Zainab Altai1,2, Claude Fiifi Hayford3, Andrew T M Phillips4

  • 1School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom.

JBMR plus
|October 17, 2024
PubMed
概括

了解各种运动对下肢关节的负荷是骨健康的关键. 跑步和跳跃显著增加了关节力量,而跳跃练习提供了多样化的效果,突出了对多样化的身体活动例程的需要.

关键词:
运动强度 运动强度高影响力演习.联合接触部队联合接触部队下肢的关节下肢的关节肌肉骨系统的建模.

更多相关视频

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
09:32

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Published on: April 11, 2018

9.7K
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

7.9K

相关实验视频

Last Updated: Jun 10, 2025

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
Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
09:32

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Published on: April 11, 2018

9.7K
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

7.9K

科学领域:

  • 生物力学 生物力学
  • 运动生理学 运动生理学
  • 整形外科 整形外科 整形外科

背景情况:

  • 骨质疏松症导致全球数以百万计的低创伤性骨折,特别是在老年人中.
  • 身体活动对于预防骨折至关重要,但最佳的强化骨的炼还没有得到很好的定义.
  • 了解不同的运动期间下肢关节负荷对于有效的骨健康策略至关重要.

研究的目的:

  • 为了研究在各种高冲击运动中下肢关节负荷动态.
  • 为了比较不同类型和强度的联合部队.
  • 为骨健康和骨质疏松症预防提供信息的运动处方.

主要方法:

  • 收集了来自40名健康成年人进行6项运动 (步行,跑步,反运动跳跃,式跳跃,单侧跳跃,双侧跳跃) 的运动捕捉和地面反应力数据.
  • 利用OpenSim肌肉骨模型来估计下肢关节反应力.
  • 分析了基于运动类型和强度的关节负荷变化.

主要成果:

  • 与步行相比,跑步和跳跃产生了更高的部,膝盖和脚关节力量.
  • 跳跃练习 (反运动和式跳跃) 与步行相比,减少了部和脚的负荷.
  • 增加的跑步速度和跳跃频率改变了关节力,更高的跳跃加剧了所有测试关节的负荷.

结论:

  • 下肢关节负荷在不同的运动类型和强度之间有很大差异.
  • 包含多种运动的多样化炼习惯对于优化骨健康至关重要.
  • 运动计划应根据具体目标量身定制,考虑到每个活动的独特负载模式.