Abstract
Stroke and other neurological disorders have an effect on mobility which has a significant impact on independence and quality of life. The core rehabilitation requirements for patients with lower limb motor dysfunction are gait training, restand, and mobility. In this work, we introduce a newly developed multifunctional wheelchair that we call “ReChair” and evaluated its performance preliminarily. ReChair seamlessly integrates the mobility, gait training, and multiposture transformation. ReChair driving and multiposture transformation are done using the voice, button, and mobile terminal control. This work describes the functional requirements, mechanical structure, and control system and the overall evaluation of ReChair including the kinematic simulation of the multiposture transformation and passive lower limb rehabilitation training to quantitatively verify the motion capability of ReChair, the voice control system evaluation that shows how the voice recognition system is suitable for home environment, the sensorless speed detection test results that indicate how the wheel speeds measured by sensorless method are appropriate for travelling control, and the passive and balance training test results that show how the lower limb rehabilitation training in daily life by ReChair is convenient. Finally, the experimental results show that ReChair meets the patients’ requirements and has practical significance. It is cost-effective, easy to use, and supports multiple control modes to adapt to different rehabilitation phases.
Highlights
Stroke and other neurological disorders have an effect on mobility which has a significant impact on independence and quality of life. e core rehabilitation requirements for patients with lower limb motor dysfunction are gait training, restand, and mobility
ReChair driving and multiposture transformation are done using the voice, button, and mobile terminal control. is work describes the functional requirements, mechanical structure, and control system and the overall evaluation of ReChair including the kinematic simulation of the multiposture transformation and passive lower limb rehabilitation training to quantitatively verify the motion capability of ReChair, the voice control system evaluation that shows how the voice recognition system is suitable for home environment, the sensorless speed detection test results that indicate how the wheel speeds measured by sensorless method are appropriate for travelling control, and the passive and balance training test results that show how the lower limb rehabilitation training in daily life by ReChair is convenient
Lower limb rehabilitation devices are typically divided into body weight support training devices (BWSTDs) and lower limb exoskeletons (LLE) [6]. e basic components of a BWSTD are a body weight support system and the LLE linked to a treadmill or movable footplates. e significant size and cost of BWSTDs usually result in limited applications
Summary
Stroke and other neurological disorders have an effect on mobility which has a significant impact on independence and quality of life. e core rehabilitation requirements for patients with lower limb motor dysfunction are gait training, restand, and mobility. Stroke and other neurological disorders have an effect on mobility which has a significant impact on independence and quality of life. E core rehabilitation requirements for patients with lower limb motor dysfunction are gait training, restand, and mobility. The experimental results show that ReChair meets the patients’ requirements and has practical significance It is cost-effective, easy to use, and supports multiple control modes to adapt to different rehabilitation phases. Spinal cord injury (SCI), and other neurological disorders are often related to aging [2] and have an effect on various functions necessary for daily life, especially mobility which has a significant impact on independence and quality of life. In order to alleviate the physical burden on physiotherapists and maximize independent function of stroke or SCI patients, numerous lower limb rehabilitation and assistive devices have been proposed. E LLE ReWalk developed by Argo Medical Technologies provides powered hip and knee motion to enable individuals with SCI to stand upright, walk, turn, and climb stairs up and down. e ankles are passive and use a double-action orthosis with limited motion and spring-assisted dorsiflexion
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