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The Effect of assistive force of rehabilitation robot on upper extremity function in stroke patients : a single blinded randomized trial |
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Joon-Ho Shin(National Rehabilitation Center, Korea) |
| This study compared the effect of assistive force of rehabilitation robot on upper extremity function in stroke patients. Participants were randomly allocated to the robot supported by assistive force or robot without assistive force. Both groups showed statistically significant improvement on upper extremity function after intervention. However, there was no difference with the clinical results. |
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A robot for impedance estimation of human upper limb |
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Sang Hoon Kang, Hyunah Kang(UNIST, Korea) |
| The estimation of the 3-dimensional (3-D) human upper limb mechanical impedance transfer function matrix is important to complement the diagnosis of altered mechanical resistance of stroke survivors. There is no robot that is the right size to deliver the small perturbations safely with simple operation of clinicians. Thus, with 5 design criteria (low energy consumption, low joint friction, high manipulability, light weight, and high rigidity), a robot that can estimate the arm impedance stochastically in clinical settings was developed and experimentally verified its accuracy and reliability. |
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Model-based Assessment of Reaching Task for Individualized Robotic Training |
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Jonghyun Kim(DGIST, Korea) |
| This study is to propose a model that represents normal reaching movement to evaluate the performance of the affected-side movement. It was found that the less-affected limb of post-stroke patients had similar motor characteristics to that of normal subjects who perform normal reaching movement, and thus the performance of the affected side could be evaluated by the normal side. Along with the proposed the model, the contour mapping method based on the model was applied to express the patient’s individual motor deficit. |
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Shoulder Rehabilitation Robot |
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Hyung-Soon Park(KAIST, Korea) |
| This paper presents a low-end shoulder rehabilitation robot to conduct various rehabilitation motions and allow the translational movement of the shoulder joint. It is composed of two main mechanism: a mechanism to align the direction of the actuator, and a passive shoulder joint tracker. The effect of the tracker was evaluated in an experiment, combining the two commercial devices with the proposed tracker. It reduced the angle difference and the interaction force between device and arm. It shows that a low-end shoulder robot using an actuator can applied with various shoulder diseases. |
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Comparison of Reach Exercise in Chronic Stroke Survivors via High/Low Inertia Upper Extremity Rehabilitation Robots |
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Won-Kyung Song(National Rehabilitation Center, Korea) |
| This study compared clinical outcomes in chronic stroke survivors in 4-week robot-assisted reach training via high inertia or low inertia upper extremity rehabilitation robots. The exercise was performed with a Proficio and a Whole Arm Manipulator including an assist-as-needed mode and a projective display to provide visual and auditory feedback. After four weeks, significant improvement was observed in upper extremity functional movement and kinematic performance. The low inertia robot had higher improvement in contrast to the high inertia robot. |
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