Study on Upper-Limb Rehabilitation Training and Evaluation SystemUsing Nano-Particle MR Fluid Actuators

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The percentage of aged persons in society and their number are increasing, and their physical deterioration has become a social problem in many countries. Early detection of function deterioration and sufficient rehabilitation training are necessary, not only to decrease the numbers of aged who are bedridden or need nursing care, but also to enable the aged to take an active part in society. So, we studied and developed rehabilitation systems for upper limbs using nano-particle MR fluid actuators. In this system, MR actuators were used for the purpose of securing high safety. The rheological properties of MR fluids are rapidly and reversibly altered under an applied magnetic field. We also studied facilitation systems by vibration using vibration actuator and MR fluidbrake. Moreover, we studied the evaluation device of synergy movement in stroke patients.