TOWARDS A MODEL FOR FORCE PREDICTIONS IN THE HUMAN SHOULDER
TOWARDS A MODEL FOR FORCE PREDICTIONS IN THE HUMAN SHOULDER
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DOI：
10.1016/0021-9290(92)90275-6
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发表时间：
1992-02-01
影响因子：
2.4
通讯作者：
PETERSON, B
中科院分区：
文献类型：
--
作者：
KARLSSON, D;PETERSON, B
本文介绍了人体肩部三维生物力学模型的概念。该模型用于分析肌肉、骨骼和韧带之间的静态负荷分担。该模型包含了所有的肩结构，这意味着可以使用同一模型分析不同位置和不同载荷情况。解决方案可以找到完整的肩部运动范围。然而，这篇文章只关注肩胛骨平面的抬高和附着在肱骨上的结构的力。目的是在未来的研究中扩展模型，将作用在肩胛骨和锁骨上的力也包括进来。利用以肌肉应力平方和为目标函数的优化技术预测肩部复合体中的肌肉骨骼力。数值结果预测，在三角肌肩胛关节部分的肌肉中，冈下肌、冈上肌、肩胛下肌、胸大肌、喙臂肌和肱二头肌是这种外展中最活跃的肌肉。当手负荷为1公斤时，肌肉力量水平达到150牛。该模型的结果似乎在定性上是准确的，但结论是，在模型的未来发展中，必须约束关节内接触力的方向。
In this paper the concept of a three-dimensional biomechanical model of the human shoulder is introduced. This model is used to analyze static load sharing between the muscles, the bones and the ligaments. The model consists of all shoulder structures, which means that different positions and different load situations may be analyzed using the same model. Solutions can be found for the complete range of shoulder motion. However, this article focuses only on elevation in the scapular plane and on forces in structures attached to the humerus. The intention is to expand the model in future studies to also involve the forces acting on the other shoulder bones: the scapula and the clavicle. The musculoskeletal forces in the shoulder complex are predicted utilizing the optimization technique with the sum of squared muscle stresses as an objective function. Numerical results predict that among the muscles crossing the glenohumeral joint parts of the deltoideus, the infraspinatus, the supraspinatus, the subscapularis, the pectoralis major, the coracobrachialis and the biceps are the muscles most activated during this sort of abduction. Muscle-force levels reached values of 150 N when the hand load was 1 kg. The results from the model seem to be qualitatively accurate, but it is concluded that in the future development of the model the direction of the contact force in the glenohumeral joint must be constrained.