Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training

A bilateral wrist joint training and rehabilitation mechanism is designed to meet the requirements of bilateral passive training better than unilateral active training. The rehabilitation mechanism adopts two spatial reverse double crank parallel sub mechanisms. The forward kinematics of the mechani...

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Main Authors: Han Lisheng, Liu Zhifei, Li Lina, Huang Jiahai
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2023-08-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.08.022
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author Han Lisheng
Liu Zhifei
Li Lina
Huang Jiahai
author_facet Han Lisheng
Liu Zhifei
Li Lina
Huang Jiahai
author_sort Han Lisheng
collection DOAJ
description A bilateral wrist joint training and rehabilitation mechanism is designed to meet the requirements of bilateral passive training better than unilateral active training. The rehabilitation mechanism adopts two spatial reverse double crank parallel sub mechanisms. The forward kinematics of the mechanism is analyzed in the spherical coordinate system, and the motion relationship of the two platforms is obtained. The Euler angles of the rolling, pitching and virtual yaw motions of the two platforms are measured, and the front and back muscles are measured simultaneously in the three motion modes. The experimental data shows that when the mechanism is rolling, the angular displacements of both platforms are equal in magnitude and opposite in direction, while the mechanism is pitching, the angular displacements of both platforms are the same in magnitude and direction. The maximum and average electromyography (EMG) values of anterior and posterior muscles measured during the bilateral active training are 319.65 mV and 352.2 mV higher than those measured during the resting state, and 155.9 mV and 184 mV higher than those measured during the unilateral passive training, respectively. The above results show that the developed bilateral training machine has mirror symmetry, can play a training effect on the wrist joint, and the training effect is better than that of the unilateral training.
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spelling doaj-art-abc6b41de2094e67a5aaae4ac37dcb632025-01-10T14:58:38ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392023-08-014715416040845607Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint TrainingHan LishengLiu ZhifeiLi LinaHuang JiahaiA bilateral wrist joint training and rehabilitation mechanism is designed to meet the requirements of bilateral passive training better than unilateral active training. The rehabilitation mechanism adopts two spatial reverse double crank parallel sub mechanisms. The forward kinematics of the mechanism is analyzed in the spherical coordinate system, and the motion relationship of the two platforms is obtained. The Euler angles of the rolling, pitching and virtual yaw motions of the two platforms are measured, and the front and back muscles are measured simultaneously in the three motion modes. The experimental data shows that when the mechanism is rolling, the angular displacements of both platforms are equal in magnitude and opposite in direction, while the mechanism is pitching, the angular displacements of both platforms are the same in magnitude and direction. The maximum and average electromyography (EMG) values of anterior and posterior muscles measured during the bilateral active training are 319.65 mV and 352.2 mV higher than those measured during the resting state, and 155.9 mV and 184 mV higher than those measured during the unilateral passive training, respectively. The above results show that the developed bilateral training machine has mirror symmetry, can play a training effect on the wrist joint, and the training effect is better than that of the unilateral training.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.08.022StrokeBilateral trainingWrist rehabilitationMirror symmetry
spellingShingle Han Lisheng
Liu Zhifei
Li Lina
Huang Jiahai
Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training
Jixie chuandong
Stroke
Bilateral training
Wrist rehabilitation
Mirror symmetry
title Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training
title_full Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training
title_fullStr Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training
title_full_unstemmed Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training
title_short Development of a New Type of Rehabilitation Mechanism for Bilateral Wrist Joint Training
title_sort development of a new type of rehabilitation mechanism for bilateral wrist joint training
topic Stroke
Bilateral training
Wrist rehabilitation
Mirror symmetry
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.08.022
work_keys_str_mv AT hanlisheng developmentofanewtypeofrehabilitationmechanismforbilateralwristjointtraining
AT liuzhifei developmentofanewtypeofrehabilitationmechanismforbilateralwristjointtraining
AT lilina developmentofanewtypeofrehabilitationmechanismforbilateralwristjointtraining
AT huangjiahai developmentofanewtypeofrehabilitationmechanismforbilateralwristjointtraining