相关实验视频
Updated: Jan 17, 2026
09:36
Measurement of Spatial Stability in Precision Grip
Published on: June 4, 2020
3.5K
功能性抓握期间手腕曲器和延伸器肌的硬:一个试点研究
Joseph M Day1, Harold Merriman2
1Department of Physical Therapy, University of Dayton, Fitz Hall, Room 209B, 300 College Park Ave., Dayton, OH, 45469, USA.
Journal of bodywork and movement therapies
|September 16, 2025
概括
手腕延伸肌的硬度在握握时显著增加. 在健康的成年人中,常见的手腕延伸肌 (CWET) 在休息和收缩期间比常见的手腕曲肌 (CWFT) 更加硬.
科学领域:
- 生物力学 生物力学
- 肌肉骨超声波 肌肉骨超声波
- 肌生理学 肌生理学
背景情况:
- 肌硬度对于有效的力传递和伤害预防至关重要.
- 了解曲肌和延伸肌之间的度差异对于掌握力学很重要.
- 在不同的负载条件下,有限的研究量化了这些差异.
研究的目的:
- 要量化常见手腕柔肌 (CWFT) 和常见手腕延伸肌 (CWET) 之间的静止和亚最大抓紧度的差异.
- 为了比较曲肌和延伸肌之间的硬度值,在静止状态下和在亚最大握力期间.
主要方法:
- 使用2D剪波弹性图像 (SWE) 超声成像来测量CWFT和CWET的剪模量 (kPa).
- 测量是在休息状态下进行的,在25%的最大握力期间进行的.
- 分析数据使用双向单变异差分析,评估肌类型和握力状况.
主要成果:
- 常见的手腕延伸肌 (CWET) 在休息和抓握期间表现出比常见的手腕曲肌 (CWFT) 更高的度 (p < .001).
- 肌硬度从休息到抓握显著增加,这两个肌 (p < .001).
- 显著的相互作用效应表明,收缩期间CWET的度增加更大 (p < .001).
结论:
- 常见的手腕延伸肌 (CWET) 硬性在握握时显著增加.
- 在健康的年轻人中,CWET与CWFT相比,在休息和收缩时表现出更大的硬度.
- 研究结果提供了关于在功能任务中手腕肌的机械性质的见解.
相关概念视频
01:16Muscles of the Forearm that Move the Hand and Fingers
2.4K
The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
2.4K
01:16Muscles that Move the Forearm
3.8K
The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
3.8K