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An innovative biomedical engineering (BME) laboratory course was developed to integrate wireless biotechnology with a hands on learning approach. In recent years the need for biomedical engineers in research and industry has increased dramatically. This requires novel strategies for training BME students in both engineering principles and clinical applications. BME students should be prepared with...
Owing to the increasing number of disabled individuals, technical aids are acting more aggressively in the era of modern medicine. The M3S (multiple master multiple slave) system developed for the physically challenged, utilizes intelligent transmission and integration mechanisms to arrange all hooked-up devices with proper control. To overcome certain limitations of the system (e.g. distance), an...
Stroke can cause a variety of cognitive disturbances depending on the location of the injury. It is proved by clinic that some specific cognitive training is a safe and effective method for stroke patients who are suffering from cognitive disturbances. In this paper, we designed and implemented a tele-therapy system that based on Internet, so that the patients with cognitive impairment can take the...
The importance of human posture monitoring is well recognized in the field of rehabilitation, in order to evaluate quantitatively the effectiveness of rehabilitation by a physical therapist. The activity monitoring is also well recognized as being useful in the field of certification of eligibility for long-term care. Assessment of the actual physical condition of the applicant tends to be difficult...
Hybrid cochlear implants would integrate electric and acoustic auditory stimulation into a single unit to rehabilitate patients with sensori-neural hearing loss. Conceptually, hybrid cochlear implants consist of an electrode array, as in traditional cochlear implants, and an acoustic microactuator to generate pressure waves inside the cochlea. To enable hybrid cochlear implants, one must develop acoustic...
Preliminary experiment for analyzing weight shift during gait phases for hemiplegic patients was carried out to develop rehabilitation equipment. A gait phase detection system using pressure sensors was developed and the experiment was carried out for eight hemiplegic patients and normal adult. The weight shift during gait phases for a normal adult showed symmetrical for left and right footing phase,...
The viscosity of non-solid foods, and the stability of their viscosity over time, temperature change and shearing is critical in managing dysphagia. The starch-based foodstuffs thickeners used in dysphagia therapy are highly non-Newtonian and their viscosity is dependent on shear rate, shear history, temperature and time. This inherently results in the subjective measurement of viscosity and hence...
Previous studies have suggested that task-oriented biofeedback training may be effective for functional motor improvement. The purpose of this project was to design an interactive, multimodal biofeedback system for the task-oriented training of goal-directed reaching. The central controller, based on a user context model, identifies the state of task performance using multisensing data and provides...
We performed experimental studies on the training of postural control using a training system which consists of an unstable platform, a computer, a computer interface, a monitoring device, and training programs. Using this system with the training programs that we have developed, we performed a variety of experiments of training the abilities of postural control of subjects. To evaluate the effects...
This paper presents a system developed for cognitive impairment evaluation and training. We integrate three different test modules in the system for decreasing the complexity of the system manipulation and increasing the completeness of various cognitive function evaluations. Besides the standard modules, including CPT and WCST, a new module to evaluate and train the cognitive ability in the three...
A virtual space locomotion interface device using lower limb motion at supine position has been developed to allow the users to exercise and communicate with each other at home. The velocity control performance, muscle activity and the energy consumption while using the developed device were evaluated. It was demonstrated that the developed device reflects the user's subjectivity adequately and the...
In this paper, a new rehabilitation training system was developed to improve equilibrium sense control by combining virtual reality technology with a fixed exercise bicycle. In order to evaluate the effectiveness of the training system, twenty normal healthy adults participated as test subjects in the investigation of the influence of different the parameters on equilibrium sensory control. Several...
The work presented in this paper is related to the development of a rehabilitation systems which is based on realistic and adaptive knee model. The aim of this system is to improve the comprehension of the knee movement and the diagnosis of its pathologies. In this way, we propose to express in a simple and accessible manner a three dimensional dynamic tibio-femoral model to respect the control and...
Spasticity, contracture, and muscle weakness are major sources of disability in stroke. Changes of torque-generating capacity as well as reflex and non-reflex properties of ankle plantar flexors induced by strenuous stretching in chronic hemiplegia were investigated. Twelve subjects with a unilateral stroke and 10 healthy controls underwent 30 minutes of strenuous intelligent stretching treatment...
20 patients with stroke more than one year earlier were evaluated, admitted to a novel therapy including constraint-induced and computer game-motivated therapy. Statistically significant improvements after 4 weeks of late therapy were seen in all 20 patients on nine out of eleven quantified clinical evaluation scales. The patients looked forward to and enjoyed the therapy. These same late stroke patients...
In the present study, we investigate mechanisms to effectively control patients for cardiac rehabilitation. Cardiac rehabilitation exercise includes many things of our present needs and should observe the conditions of the patients accurately at a different level to be sent to physical therapist (PT). The estimated value should be re-sent to patients as a prescription for cardiac rehabilitation exercise...
Multiple robotic systems are under development for training of both upper and lower extremity function in neurologically impaired subjects with spinal cord injury or stroke, yet we currently lack the framework for designing and evaluating mechanical devices and approaches for treatment of such disorders. This paper will describe possible approaches towards evaluating the optimal approach for rehabilitation...
Brain computer interface (BCI) algorithms are used to predict the torque generation in the direction of shoulder abduction or elbow flexion using scalp EEG signals from 163 electrodes. Based on features extracted from both frequency and time domains, three classifiers are employed including support vector classifier, classification trees and K nearest neighbor. Support vector classifier achieves the...
Mechanisms underlying discoordination, expressed in the form of obligatory coupling between the shoulder and the elbow muscles following stroke, are probed by simultaneously recording 163-channel EEG together with elbow/shoulder torques and EMGs from the upper arm. With this unique experimental protocol, we were able to have strict post hoc control of a subject's motor performance. Using this novel...
Stroke is a leading cause of persistent motor disability, but few effective treatments exist for application at chronic post-injury timepoints. An approach that combines rehabilitative training with cortical electrical stimulation was evaluated in a non-human primate model of cortical ischemic stroke. Results indicate that cortical stimulation plus rehabilitation enhanced motor recovery compared to...
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