中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (22): 4091-4098.doi: 10.3969/j.issn.2095-4344.2013.22.015

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

基于Anybody软件平台冷水刺激前后食指动力学的特性

尹传盛1,孙  芳2,贺  缨1,邵宏伟1     

  1. 1中国科学技术大学近代力学系,安徽省合肥市  230027
    2上海硅步科学仪器有限公司,上海市  200030
  • 出版日期:2013-05-28 发布日期:2013-05-28
  • 通讯作者: 贺缨,博士,教授,中国科学技术大学近代力学系,安徽省合肥市 230027 yhe@ustc.edu.cn
  • 作者简介:尹传盛★,男,1990年生,汉族,2012年中国科学技术大学毕业,中国科学技术大学在读硕士。 ycs0522@gmail.com
  • 基金资助:

    本课题部分工作获得中央高校基本业务费的支持(WK2100230009)。

Dynamical chanracteristics of index finger in response to cold water stimulation: Analysis based on Anybody platform

Yin Chuan-sheng1, Sun Fang2, He Ying1, Shao Hong-wei1   

  1. 1 Department of Modern Mechanics, University of Science and Technology of China, Hefei  230027, Anhui Province, China
    2 Shanghai Gaitech Scientific Instruments Co., Ltd., Shanghai  200030, China
  • Online:2013-05-28 Published:2013-05-28
  • Contact: He Ying, M.D., Professor, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, Anhui Province, China yhe@ustc.edu.cn
  • About author:Yin Chuan-sheng★, Studying for master’s degree, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, Anhui Province, China ycs0522@gmail.com
  • Supported by:

    The Fundamental Research Funds for Central Universities, No.WK2100230009*

摘要:

背景:Anybody人体建模仿真系统是计算机辅助人类工效学和生物力学分析软件,并且是目前惟一可以分析完整骨骼肌肉系统的软件,利用它可以计算模型中骨骼、肌肉、关节的受力变形。
目的:实验旨在通过计算模型观察手指在冷水刺激环境下食指的灵活性。
方法:参照以往人食指运动实验结果,获得人食指弯曲的运动学参数,利用Anybody软件平台构建正常人手部握拳运动学模型,并进一步构建了包含两根外屈肌(指浅屈肌和指深屈肌)的骨骼肌肉模型,通过逆向动力学分析,考察受冷水刺激前后手部握拳运动时肌肉力和收缩功率等的变化。
结果与结论:冷水刺激后,食指各关节在屈伸过程中的平均角速度较冷水刺激前变小,指浅屈肌的肌肉力变化幅值也较冷水刺激前增大;指深屈肌的收缩功率下降明显,而指浅屈肌收缩功率变化不大。结果证实,冷水刺激会使正常人手握拳动作变慢,且正常人手的指浅屈肌对冷水刺激更敏感,进一步说明指浅屈肌在握拳动作中的重要性。

关键词: 骨关节植入物, 骨与关节生物力学, Anybody软件平台, 食指, 运动学, 动力学, 冷水刺激, 肌肉力, 指浅屈肌, 指深屈肌, 近指关节, 远指关节, 其他基金

Abstract:

BACKGROUND: Anybody human modeling and simulation system is a computer-aided ergonomics and biomechanical analysis software, and it is the only software that can analyze the musculoskeletal system completely which can be used to calculate the force deformation of bone, muscle and joint.
OBJECTIVE: To investigate the index finger dexterity after cold water stimulation using computing model.
METHODS: Based on the available data of the experiment about the index finger movement, the kinematic parameters of index finger in the movement were achieved. Subsequently, a clench fist kinematic model of hand was established with Anybody platform, and then a musculoskeletal model consisting of the extrinsic flexor muscles (flexor digitorum profundus and flexor digitorum superficialis) was developed to describe the changes of muscle force and contraction power in clench fist movement before and after cold simulation through inverse dynamics analysis. 
RESULTS AND CONCLUSION: After the cold water stimulation, the average angular velocities of the three joints of index finger were decreased during the flexing movement compared to those before cold water stimulation, and the muscle force of flexor digitorum superficialis was increased significantly in the flexing process. The contract power of flexor digitorum profundus decreased obviously, whereas the contract power of flexor digitorum superficialis was decreased slightly. The results indicate that the finger movement takes more time and the muscle force of flexor digitorum superficialis is more sensitive to the cold stimulation, which further indicates the importance of flexor digitorum superficialis in clench fist movement.

Key words: bone and joint implants, bone and joint biomechanics, Anybody platform, index finger, kinematics, dynamics, cold water stimulation, muscle force, flexor digitorum profundus, flexor digitorum superficialis, distal interphalangeal joint, proximal interphalangeal joint, other grants-supported paper

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