评估腰部和腹部肌肉在最大自愿异面延伸过程中在不同斜视平面角度的行为
Sharareh Kian-Bostanabad1, Mahmoodreza Azghani1, Mohammad Parnianpour2
1Department of Biomechanical Engineering, Faculty of Biomedical Engineering, Sahand University of Technology, Tabriz, Iran.
概括
腰部曲角度影响扭矩,而不是肌肉的努力,在最大自愿的同度延伸. 在更深的曲角度增加的扭矩归因于肌肉几何学的变化,特别是扭矩杆臂的变化.
科学领域:
- 生物力学 生物力学
- 人类运动科学科学 人类运动科学
- 人体工程学就是人体工程学.
背景情况:
- 腰部疾病与身体的姿势和运动有关.
- 斜面平面的角度会影响延伸扭矩的能力,但是这些角度的肌肉活动变化还不太清楚.
研究的目的:
- 在最大自愿同度延伸 (MVIE) 期间,研究腹部和腰部肌肉在不同斜平面角度的行为.
- 分析扭矩,肌肉活动和协收缩指数 (CCI) 在各种曲角度的变化.
- 通过计算生物机械模型验证实验结果.
主要方法:
- 在MVIE期间,健康男性的16个肌肉的肌电图 (EMG) 被记录在5°,15°,30°和45°的腰部曲处.
- 计算了扭矩,肌肉活动和共同收缩指数 (CCI).
- 使用计算生物机械模型 (AnyBody软件) 模拟实验条件并计算肌肉扭矩杆臂.
主要成果:
- 随着曲角度的增加,最大自愿等距延伸 (MVIE) 扭矩增加 (从5°的~138Nm到45°的~171Nm).
- 肌肉活动和CCI在所有测试角度保持相似.
- 肌肉扭矩杆臂因屈曲角度而异,计算模型证实了实验结果.
结论:
- 在各种斜面平面角度的扭矩差异主要是由于几何肌肉参数的变化,例如扭矩杆臂.
- 尽管肌肉努力一致,但在更深的曲角度 (30°-45°) 可以实现更大的MVIE扭矩.
- 研究结果表明,扭矩的变化,而不是肌肉的努力,是理解在松平面上安全提升的关键.
相关概念视频
Axial and Appendicular Muscles
Skeletal muscles, the key players in our body's movement, can be classified into two groups based on their location and function: axial muscles and appendicular muscles. These classifications reflect the primary roles the muscles play in the body's structure and movement.
Axial Muscles
Axial muscles, situated along the body's midline, are intricately connected to the axial skeleton, which includes the skull, spine, ribs, and sternum. These muscles facilitate facial expressions and play a...
Axial Muscles
Axial muscles, situated along the body's midline, are intricately connected to the axial skeleton, which includes the skull, spine, ribs, and sternum. These muscles facilitate facial expressions and play a...
Muscles of the Vertebral Column
The back muscles that lie deep into the thoracolumbar fascia are called intrinsic or true back muscles. These muscles are divided into four layers: superficial, intermediate, deep, and deepest layers.
Superficial Layer:
The superficial layer consists primarily of the splenius muscles, which include the splenius capitis and splenius cervicis. These muscles are mainly responsible for the head and cervical spine movements, including extension, rotation, and lateral bending. The splenius capitis...
Superficial Layer:
The superficial layer consists primarily of the splenius muscles, which include the splenius capitis and splenius cervicis. These muscles are mainly responsible for the head and cervical spine movements, including extension, rotation, and lateral bending. The splenius capitis...
Muscles of the Abdomen
The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the top by the xiphoid process and costal margins, at the back by the vertebral column, and at the bottom by the pelvic bones and inguinal ligament. The abdominal wall is divided into two regions — the anterolateral and posterior regions.
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and anterior...
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and anterior...
Muscles of the Pelvic Floor and Perineum
The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function, childbirth, and core stability. They are typically divided into the superficial perineal layer and the deep pelvic floor layer.
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...


