Analysis on Muscle Mechanical Properties of Stroke Patients’ Hand Grasping Training Based on AnyBody
10.16156/j.1004-7220.2021.05.06
- VernacularTitle:基于AnyBody脑卒中患者手部抓握训练的肌肉力学特性分析
- Author:
Mengwen ZHAO
1
;
Zhigang HU
2
,
3
;
Xinzheng WANG
4
;
Dongliao FU
4
Author Information
1. School of Mechatronics Engineering, Henan University of Science and Technology
2. School of Mechatronics Engineering,College of Medical Technology and Engineering, Henan University of Science and Technology
3. Intelligent Rehabilitation Medical Robot Engineering Research Center in Henan
4. College of Medical Technology and Engineering, Henan University of Science and Technology
- Publication Type:Journal Article
- Keywords:
stroke;
skeletal muscle;
hand grasping training;
muscle force;
reverse dynamics analysis
- From:
Journal of Medical Biomechanics
2021;36(5):E698-E704
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish the biomechanical model of skeletal muscle during hand grasping for reverse dynamics simulation, so as to obtain the maximum muscle force of each muscle involved in the process of hand grasping under different forces. Methods CT scanning was performed on a volunteer’s hand, and CT data of his hand were imported into Mimics software for 3D reconstruction, so as to obtain the bone models of each segment. After adjusting the model coordinates by Geomagic Studio, the model was imported in AnyBody software for establishing the kinematics model of the hand skeleton. The related muscles involved in the flexion of each finger were added, to establish the skeletal muscle model of the hand. The model was then used to simulate the reverse dynamics of hand grasping. ResultsThe maximum muscle force of each muscle in the whole process of finger movement was obtained after the 5-30 N external force was applied to each distal phalanx. With the increase of force, the maximum muscle force of each muscle showed a linear trend. For example, the maximum muscle force of flexor pollicis longus increased from 18.49 N to 110.93 N; when the external force was 5 N, the maximum muscle force of flexor pollicis brevis, flexor pollicis longus, adductor pollicis and flexor digiti minimi brevis during hand grasping was 7.70, 18.49, 9.49, 8.39 N, respectively. The muscle force of superficial and deep flexors was greater than that of other muscles in the process of finger movement, which played a major role in grasping the hand. Conclusions The maximum muscle force of the muscles involved in hand grasping under different resistance, and the relationship between muscle force of main muscles and joint angles, can provide guidance and references for the evaluation of hand rehabilitation effect of stroke patients, as well as certain theoretical basis for the manufacture of rehabilitation equipment.
