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A body-weight support locomotion training (BWSLT) device has been developed for the lower limb rehabilitation. In order to evaluate the effectiveness of the device, seven healthy subjects have participated the walking experiments. The experiments include the walking along a floor mat and the walking with the assistance of the device. On the other hand, experiments have been conducted on one spinal...
A prototype for a walking assistance apparatus for the elderly or motor palsy patients was developed, using a novel spatial parallel link mechanism. The flat steps of the apparatus move in parallel with the ground; the apparatus can support entire leg alignment (including soles) and assist; walking behavior at ankle, knee and hip joints simultaneously. By using a flexible link, constructed of stainless...
Driven Gait Orthosis (DGO) are commonly used in gait rehabilitation. These devices commonly lack an actuator at the ankle. As a result the ankle trajectories often differ considerably from those seen normally. The question arises whether these abnormal trajectories affect the phase-dependent modulation of cutaneous reflexes from the foot. To investigate this, the sural nerve was stimulated electrically...
The purpose of this study was to develop a rehabilitation device for preventing deterioration of the neuromuscular system in patients with spinal cord injury (SCI). Specifically, motorized footrests that could generate passive motion in paralyzed ankles were devised for use with a wheelchair. We here show the concept and structure of our developed device, and confirmed its effectiveness through physiological...
This paper describes experimental results obtained for level walking using an active ankle foot orthosis (AAFO) for a ruptured Achilles tendon. The sole of the AAFO is equipped with a servomotor. The actuator can switch the upright and the forward stepping posture of the patient. In gait trials, 1. the use of the AAFO made it possible for the patient to walk without the help of crutches with the ankle...
Therapists often emphasize selection and design of proper training programs for individual patients in different situations and rehabilitation stages. Thus, in order to cater different patient groups, this paper proposes four assistant control strategies for robotic rehabilitation of gait locomotion: (1) orthosis-free, (2) totally-passive, (3) optimal assistance and (4) resistance exercise. A robotic...
For central nervous system (CNS) impaired patients, e.g. after stroke, the achievement of an independent, stable gait function and endurance in walking is essential for independent mobility in daily life. Modern concepts of rehabilitation favor a task specific repetitive training, that facilitates natural motion and muscle activation patterns, i.e. in addition to commonly practiced floor walking other...
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