Posts Tagged myoelectric
[ARTICLE] Feasibility and clinical experience of implementing a myoelectric upper limb orthosis in the rehabilitation of chronic stroke patients: A clinical case series report – Full Text
Individuals with stroke are often left with persistent upper limb dysfunction, even after treatment with traditional rehabilitation methods. The purpose of this retrospective study is to demonstrate feasibility of the implementation of an upper limb myoelectric orthosis for the treatment of persistent moderate upper limb impairment following stroke (>6 months). Methods: Nine patients (>6 months post stroke) participated in treatment at an outpatient Occupational Therapy department utilizing the MyoPro myoelectric orthotic device. Group therapy was provided at a frequency of 1–2 sessions per week (60–90 minutes per session). Patients were instructed to perform training with the device at home on non-therapy days and to continue with use of the device after completion of the group training period. Outcome measures included Fugl-Meyer Upper Limb Assessment (FM) and modified Ashworth Scale (MAS). Results: Patients demonstrated clinically important and statistically significant improvement of 9.0±4.8 points (p = 0.0005) on a measure of motor control impairment (FM) during participation in group training. It was feasible to administer the training in a group setting with the MyoPro, using a 1:4 ratio (therapist to patients). Muscle tone improved for muscles with MAS >1.5 at baseline. Discussion: Myoelectric orthosis use is feasible in a group clinic setting and in home-use structure for chronic stroke survivors. Clinically important motor control gains were observed on FM in 7 of 9 patients who participated in training.
Stroke is a leading cause of long term disability in the United States. Traditional rehabilitation does not restore normal motor control for all stroke survivors, and upwards of 50% live with persistent upper limb dysfunction. This leads to diminished functional independence and quality of life. Motor learning-based interventions have shown promise. However in today’s health care milieu, for those with chronic motor deficits, provision of the intensive rehabilitation necessary to provide motor learning-based interventions is challenging. Therefore, new treatment methods are needed under these constraints.
An emerging technology that warrants further investigation is myoelectric control which harnesses the user’s EMG signal to power a custom fabricated orthotic device. When the user activates a target muscle, the EMG signal from that muscle signals a motor to produce a desired movement. Myoelectric control has been studied in different populations, but its study in stroke has been limited. One commercially available upper limb myoelectric device is the MyoPro motion-G (Cambridge, MA). The MyoPro motion-G provides assistance to the weak upper limb and allows the patient to perform movement they otherwise are unable to complete. Preliminary evidence suggests it may be effective in improving motor control[6–9] and one study showed improvement in self-reported function and perception of recovery. This device has been utilized in the occupational therapy (OT) clinic at our medical center for 5 years. The purpose of this study is to demonstrate feasibility of administering treatment with the MyoPro using a group therapy design in a cohort of patients with chronic stroke whose progress with standard OT had plateaued.[…]
Myomo Inc announces that its MyoPro myoelectric arm orthosis is now available to adolescents to help restore upper limb functionality in paralyzed or weakened arms.
In order to facilitate MyoPro fittings and delivery to adolescent patients, Myomo has partnered with Easterseals DuPage & Fox Valley (Chicago area), and is exploring partnerships with additional youth institutions and children’s hospitals, according to a media release from Cambridge, Mass-based Myomo Inc.
Paul R. Gudonis, chairman and CEO of Myomo, says in the release that, “For adolescents who suffer from a neuromuscular condition like cerebral palsy or BPI, and whose options for treatment and care have been limited, MyoPro represents new hope. We can now provide these teens with a chance to help restore function in their arms and, as a result, improve their quality of life.”
Kathy Schrock, vice president of clinical services, Easterseals DuPage & Fox Valley, Illinois, adds that, “Our partnership provides Easterseals DuPage & Fox Valley with cutting-edge technology for our therapists and clients. MyoPro will help develop arm control for adolescent clients with neurological disorders, giving them greater independence.”
Based on patented technology developed at MIT, MyoPro is designed to sense a patient’s own EMG signals through noninvasive sensors and restore function to the paralyzed or weakened arm. This allows MyoPro users to perform activities of daily living including feeding themselves, carrying objects, and doing household tasks.
[Source(s): Myomo Inc, Business Wire]
Even if you haven’t moved your hand and arm in years due to a neuromuscular injury or disease, it is possible the MyoPro® may be able to help you use your arm and hand again.
My Own Motion
Myomo empowers individuals with a neuromuscular condition who have lost movement in a hand and arm to perform activities of everyday life. Myomo offers the MyoPro, a myoelectric elbow/wrist/hand orthosis (powered brace) to support the weak arm and enable patients to move an impaired hand and arm again. MyoPro is the only product of its kind for people who suffer from debilitating neurological disorders such as brachial plexus injury, brain or spinal cord injury, CVA stroke, multiple sclerosis or amyotrophic lateral sclerosis (ALS).
MyoPro is covered by most commercial insurance companies in the U.S., and by the U.S. Veterans Administration – click here for more information for veterans.[…]
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[Abstract] Case Report on the Use of a Custom Myoelectric Elbow–Wrist–Hand Orthosis for the Remediation of Upper Extremity Paresis and Loss of Function in Chronic Stroke.
Introduction: This case study describes the application of a commercially available, custom myoelectric elbow–wrist–hand orthosis (MEWHO), on a veteran diagnosed with chronic stroke with residual left hemiparesis. The MEWHO provides powered active assistance for elbow flexion/extension and 3 jaw chuck grip. It is a noninvasive orthosis that is driven by the user’s electromyographic signal. Experience with the MEWHO and associated outcomes are reported.
Materials and Methods: The participant completed 21 outpatient occupational therapy sessions that incorporated the use of a custom MEWHO without grasp capability into traditional occupational therapy interventions. He then upgraded to an advanced version of that MEWHO that incorporated grasp capability and completed an additional 14 sessions. Range of motion, strength, spasticity (Modified Ashworth Scale [MAS]), the Box and Blocks test, the Fugl–Meyer assessment and observation of functional tasks were used to track progress. The participant also completed a home log and a manufacturers’ survey to track usage and user satisfaction over a 6-month period.
Results: Active left upper extremity range of motion and strength increased significantly (both with and without the MEWHO) and tone decreased, demonstrating both a training and an assistive effect. The participant also demonstrated an improved ability to incorporate his affected extremity (with the MEWHO) into a wide variety of bilateral, gross motor activities of daily living such as carrying a laundry basket, lifting heavy objects (e.g. a chair), using a tape measure, meal preparation, and opening doors.
Conclusion: Custom myoelectric orthoses offer an exciting opportunity for individuals diagnosed with a variety of neurological conditions to make advancements toward their recovery and independence, and warrant further research into their training effects as well as their use as assistive devices.
[WEB SITE] MyoPro – customized lightweight and fully functional arm brace for patients with neuromuscular damage.
The MyoPro® myoelectric limb orthosis is a powered brace that supports a weakened and deformed arm for functional use. In addition, the MyoPro can reinitiate movement of a partially paralyzed arm to enhance function and quality of life. It is designed for individuals with stroke, MS, ALS, brain & spinal cord injury and other neuromuscular disorders.