The effects of wrist motion and hand orientation on muscle forces: a physiologic wrist simulator study
| Autor: | Shah, Darshan S., Middleton, Claire, Gurdezi, Sabahat, Horwitz, Maxim D., Kedgley, Angela E. |
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| Přispěvatelé: | The Royal Society, Arthritis Research UK |
| Rok vydání: | 2017 |
| Předmět: |
Male
simulator Technology Rotation Short Communication Movement Biophysics Biomedical Engineering 1106 Human Movement and Sports Sciences Engineering HUMAN JOINT MOTION 0903 Biomedical Engineering Control Humans KINEMATICS TENDON FORCES Muscle Skeletal Engineering Biomedical Science & Technology Circumduction ELBOW Hand orientation Middle Aged Wrist Biomechanical Phenomena body regions Forearm muscle forces Female Life Sciences & Biomedicine 0913 Mechanical Engineering |
| Zdroj: | Journal of Biomechanics |
| Popis: | Although the orientations of the hand and forearm vary for different wrist rehabilitation protocols, their effect on muscle forces has not been quantified. Physiologic simulators enable a biomechanical evaluation of the joint by recreating functional motions in cadaveric specimens. Control strategies used to actuate joints in 5 physiologic simulators usually employ position or force feedback alone to achieve optimum load distribution across the muscles. After successful tests on a phantom limb, unique combinations of position and force feedback – hybrid control and cascade control – were used to simulate multiple cyclic wrist motions of flexion-extension, radioulnar deviation, dart thrower’s motion, and 10 circumduction using six muscles in ten cadaveric specimens. Low kinematic errors and coefficients of variation of muscle forces were observed for planar and complex wrist motions using both novel control strategies. The effect of gravity was most pronounced when the hand was in the horizontal orientation, resulting in higher extensor forces (p |
| Databáze: | OpenAIRE |
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