多关节协调和运动平面对肩和肘部关节位置感觉的影响
Wootaek Lim1,2
1Department of Physical Therapy, College of Health and Welfare, Woosong University, Daejeon, Republic of Korea.
Journal of back and musculoskeletal rehabilitation
|January 7, 2026
概括
在单个运动中,肩膀表现出比肘部更好的关节位置感 (JPS). 多关节运动可能会扭曲JPS的准确性,特别是在同一平面内.
科学领域:
- * 运动学 运动学
- * 神经科学是一门神经科学.
- * 人类运动科学科学
背景情况:
- *肩膀和肘部之间的解剖学和功能差异可能会影响关节位置感应 (JPS) 的准确性.
- *以前的研究主要评估了JPS使用跨越不同平面的单关节运动.
- * 了解单个与多个联合行动中的自感差异对于康复和表现至关重要.
研究的目的:
- * 为了比较肩膀和肘部单关节和多关节运动之间的关节位置误差 (JPE).
- * 调查运动模式和平面对自感准确性的影响.
- * 阐明JPS的背后机制:上肢关节之间的JPS差异.
主要方法:
- * 参与者在没有视觉参考的情况下进行单关节曲,将肩膀或肘部曲到45°的目标角度.
- *多关节运动包括同时肩和肘部曲 (SF-EF) 和肩与肘部曲 (SA-EF).
- * 关节位置误差 (JPE) 被量化以评估自感准确性.
主要成果:
- *肩膀在单关节任务中表现出明显较低的JPE和比肘部更高的可靠性.
- *在同一平面内的多关节运动中 (SF-EF),肩部JPE显著增加.
- * 相反,在跨越不同平面 (SA-EF) 的多关节运动中,肩部JPE减少.
结论:
- *与肘相比,肩膀在单关节运动中表现出优越的自身感知敏度.
- * 外围机制和中央运动控制的差异可能会导致这种敏度.
- * 由于总和效应,在单一平面内的多关节运动中发生自身感应扭曲,但不发生在多个平面上.
相关概念视频
Functional Classification of Joints
6.5K
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An...
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An...
6.5K
Muscle Coordination and Action
3.0K
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
3.0K
Muscles of the Shoulder
8.8K
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
8.8K
Development of the Limb Synovial Joints
2.2K
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...
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...
2.2K
Bones of the Upper Limb: Humerus
6.9K
The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
6.9K
Anatomical Movements
14.9K
Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints.
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist,...
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist,...
14.9K


