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Exoskeleton Robotics Intervention as an Adjunctive Treatment in Enhancing Post-Stroke Upper Limb Neurorecovery |
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Ahmad Dzuharuddin Othman, Noor Ayuni Che Zakaria(Universiti Teknologi MARA Shah Alam, Malaysia), Natiara Mohamad Hashim(Universiti Teknologi MARA Sungai Buloh, Malaysia), Shahrol Mohamaddan(Shibaura Institute of Technology, Japan) |
| Malaysia Exoskeletal Robot Assisted Therapy (MyERAT) underpins the concept of mirror therapy, a system integration between a sensor glove and an exoskeleton glove worn onto the patient’s affected arm to improve movement through visual feedback from a mirror reflection of a foldable mirror box. Unaffected upper limb movement manages potentiometer sensors that provide ADC reading value and Analog voltage to control 3D printed exoskeleton movement. Robotic exoskeleton might adjunct the conventional method of mirror therapy by providing two-way feedback between the brain and affected hand that enhances the neuroplasticity process, hasten the neuro recovery in post-stroke survivors. |
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Finger Extensor Facilitation Training Device “iPARKO”: Analysis of increased muscle activity in a hemiplegic person |
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Ai Nakamura(Nagoya Institute of Technology, Japan), Peichen Zhou, Yoshifumi Morita(Nagoya Institute of Tecnology, Japan), Hirofumi Tanabe(Shonan University of Medical Sciences, Japan) |
| In this study, we developed a finger extensor facilitation training device named “iPARKO” that imitates a finger extensor facilitation technique has been developed for hemiplegic patients. We examined the factors that promote activities in the extensor digitorum muscle by conducting active training using iPARKO. In addition, it was found that a hemiplegic person can increase muscle activity by pressing their hand movement and utilizing electromyography biofeedback. |
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Skin Injury Occurrence Estimation Model for the Wearable Robot Use and its Experimental Validation |
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Chang-Hwan Lee(Sejong university, Korea), Kwan-Woong Gwak(Sejong University, Korea) |
| The wearable robot's support delivered to the human wearer induces various types of force and pressure
interactions. Continued and repeated interaction of shear stress and normal pressure with human skin under the cuff
eventually leads to pain and skin injury. In fact, redness and abrasions corresponding to pressure ulcers have been
reported in real wearable robot use cases. However, studies on PU breakout mechanisms related to the use of wearable robots are very rare. Therefore, we developed the skin injury breakout time estimation model was validated through experiments with human subject. |
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Gait Clustering Analysis in Patients after a Stroke using Gait Kinematics Data |
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Hyungtai Kim(Sungkyunkwan University, Korea), Yun-Hee Kim(Samsung Medical Center, Korea), Seung-Jong Kim(Korea University, Korea), Mun-Taek Choi(Sungkyunkwan University, Korea) |
| In rehabilitation of the patients after stroke, a systematic methodology for direct measurement and interpretation of gait motion are required.
In this study, the patient's kinetic data were collected eight times over six months after onset using motion capture equipment.
Features for gait type classification were extracted from time series gait cycle data and used for machine learning analysis.
We utilized the simultaneous clustering and classification method to determine gait types that ensure classification performance.
The optimal number of gait groups was four.
We present a novel work to find the gait groups of patients after stroke, and showed the potential for use in the field. |
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Effects of using TENS as Electro-tactile Feedback for Postural Balance under Muscle Fatigue Condition |
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Junyeong Lee, Hosu Lee(GIST, Korea), Amre Eizad(Gwangju Institute of Science and Technology, Korea), Jungwon Yoon(GIST, Korea) |
| Postural control, which is most affected by proprioceptive information, is related to balance and falls, and therefore, in the case of the elderly or if the proprioception is impaired due to disease, impaired postural control may create a dangerous situation.
We developed electrotactile feedback device for transcutaneous electrical nerve stimulation to control posture under muscle fatigue condition.
An single-leg standing experiment was conducted to confirm the mechanism of the developed system as biofeedback.
Through the pilot test, the potential of the developed system as biofeedback was confirmed. |
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Development of a Six Bar Mechanism Based Active Knee Orthosis for Post-Stroke Gait Rehabilitation |
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Hosu Lee(GIST, Korea), Amre Eizad, Sanghun Pyo, Hoyoung Kim(Gwangju Institute of Science and Technology, Korea), Junyeong Lee, Jungwon Yoon(GIST, Korea) |
| This paper presents the development of a lightweight series elastic actuator based active knee orthosis (AKO) for post-stroke gait rehabilitation that is capable of providing assistive torque in a pattern similar to the natural pattern of the human leg. A pilot study with a young healthy subject wearing an ankle weight on one leg is also reported. Addition of the ankle weight reduced the subject’s gait speed and balance, and increased his knee range of motion asymmetry. While using the AKO, the subject was able to show improvements in majority of the outcome measures. |
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