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The Rutgers Arm II (RA II) is a new system that trains the shoulder/arm motor control, strengthening, arm speed of motion, endurance, and grasp strength in a single rehabilitation session. The system components are a tilted low-friction table, a forearm support with markers and wireless transmitter, a shoulder appendage to detect compensatory leaning, infrared vision tracking, a large display and...
A methodology for studying the effect of vibrations generated by a haptic interface on upper limb is introduced. In the proposed methodology, a subject presses on a horizontally vibrating, rigid, virtual object with a cheap off-the-shelf (COTS) haptic device. When the subject feels vibrations of fixed amplitude and varying frequencies the electromyographic (EMG) activity of upper limb is recorded...
The paper presents a virtual reality based dynamic balance training. The telerehabilitation balance training in stroke subject took place in smarthome, simulating a home environment. Virtual environment was designed as a game in web-explorer enabling the medical professionals to remotely supervise and control the balance training. In preliminary testing a right-side hemiparetic subject participated...
Visual and auditory feedback cues have been shown to improve gait and balance in patients with movement disorders, such as Parkinson's disease and multiple sclerosis. Subsequently, closed-loop virtual reality was used to enhance the gait improvement effect of such cues. Objectives: To study the effects of gait training with visual and auditory feedback cues on the walking abilities of patients with...
How specific are postural and balance control skills? An important issue for the establishment of effective training and retraining (rehabilitation) programs is whether skills gained while training in laboratory settings can be transferred to performance gains in somewhat different conditions (including every-day life). While there is much evidence showing that for volitional motor tasks the gains...
The challenge in rehabilitation training process is to make suitable changes to some parameters such as auxiliary power, driving resistance etc. based correct judgments for patient's physiological state, so as to help patient achieve continuous movement under the heaviest possible "driving resistance load", hence to achieve the best rehabilitation effect. This paper focuses on the issue,...
This paper is a report of the feasibility and outcome of using a low-cost, commercially available gaming system - Wii Fit - for balance training after stroke. The patient was an 86 year-old woman five weeks after stroke, who was unable to walk without close supervision, even with a walker, due to poor balance and a tendency to fall. In addition to standard physical therapy, the patient participated...
As part of a larger study evaluating the effects of trunk restraint on the kinematics of arm movements in children with cerebral palsy (CP), we evaluated the level of cooperation and satisfaction of the children when practicing arm and hand movements during play-like activities in a physical environment (PE) compared to a video-capture based (IREX, GestureTek) virtual environment (VE) using 5-point...
After stroke, arm function can be limited by a reduction in the selectivity of movements, due to involuntary coupling of shoulder abduction and elbow flexion, limiting the ability to reach. Gravity compensation reduces the required active shoulder abduction torques, which results in a larger range of motion instantaneously. However, the effect of a longer-term application of gravity compensation on...
Rehabilitation for upper limbs is important for the elderly people, the stroked patients and so on. In recent years, the needs for rehabilitation support systems are increasing, which use robot technology, virtual reality technology and neuroscience. In this paper we present about a development of evaluation system of the motor function for upper limbs using 3-D rehabilitation Robot ldquoEMULrdquo...
The purpose of this paper is to present the newly founded European research project MIMICS. The hypothesis of this project is that movement training for neurorehabilitation can be substantially improved through immersive and multimodal sensory feedback. The approach is real-time acquisition of behavioral and physiological data from patients and the use of this to adaptively and dynamically change...
Restoring hand functions may greatly improve the post-stroke life quality. In this work, we developed a new interactive rehabilitation robot for hand function training after stroke. The robotic system can provide three modes of training: (1) continuous passive motion; (2) electromyography (EMG)-triggered motion; and (3) continuous EMG-driven motion to simulate the hand opening, grip and pinch tasks...
In this study, we aim at developing a mechanical device to support human rehabilitation motion of their wrist joint instead of a physiotherapist. Pneumatic parallel manipulator is introduced as a mechanical equipment from a view that pneumatic actuators bring minute force control property owing to the air compressibility and parallel manipulator's feature of multiple degrees of freedom is suitable...
Task-oriented training improves skilled arm-hand performance after stroke. Exercises for skill training are however not easy to implement in rehabilitation technology, especially for complex skills that involve object manipulation. In this paper, a skill training method, suitable for technology-supported training of arm-hand performance after stroke is presented. A sensor-based and robotic system...
In recent years, many researchers have studied on the rehabilitation robotics to assist medical staff or patients. Some kinds of haptic devices have been developed and evaluated its efficiency with clinical tests, for example, upper limb training for patients with spasticity after stroke. Almost all the devices for upper limb rehabilitation have only 2-DOF for its active motion except for wrists....
This paper proposes a method to strengthen specific muscle group of thigh or upper arm using functional effective muscle theory. In the proposal method, the load is set by using the muscular activity pattern and the output force distribution during exercise. The muscular activity pattern and the output force distribution show an activity ratio of each muscle group and maximum output force, respectively,...
We investigated how learning of inertial load manipulation is influenced by movement amplification with negative viscosity. Using a force-feedback device, subjects trained on anisotropic loads (5 orientations) with free movements in one of three conditions (inertia only, negative viscosity only, or combined), prior to common evaluation conditions (prescribed circular pattern with inertia only). Training...
Exercise therapy is prescribed by physiotherapists and rehabilitation practitioners as part of the treatment programme for many movement impairment disorders. Poor adherence and inadequate exercise technique often result in poor outcomes for these patients and delays their return to full physical function. Therapeutic exergaming, which is the use of computer games and body-worn motion tracking sensors...
Adaptation is critical to the survival of any species and is present in many systems within the brain. Rehabilitation can evoke neuroplasticity through adaptive mechanisms. Four subjects with the vision dysfunction of convergence insufficiency where two have mild traumatic brain injury and two were congenital participated in 18 hours of vision training. Clinical, behavioral, functional imaging and...
Strengthening muscle force by training, e.g., an isokinetic exercise is widely used in rehabilitative activities or sports rehabilitations. However, many conventional isokinetic exercise machines cost expensive depending on its actuation device and safety system (hardware and software). In this study, we have developed highly safe isokinetic exercise systems using only brakes with functional fluids...
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