Lack of muscle control (Stroke, bladder control, neurological disorders) Mechanical movement therapist assisted

Transcription

1 By Lisa Rosenberg

2 Electrical Current Stimulates muscles and nerves Produces movement Helps Individuals with Disabilities Lack of muscle control (Stroke, bladder control, neurological disorders) Passive Therapy Mechanical movement therapist assisted Active Therapy Functional Electrical Stimulation (FES) and mechanical movement

3 Spinal Cord Injury Stroke Cerebral Palsy Paraplegia Quadriplegia Urinary Incontinence Sexual Dysfunction Multiple Sclerosis Upper and Lower limb control

4 Combination of manual and electrical stimulation Patient imagines feeling the movement Sensory signals generated Stimulates peroneal nerves Retrains the central nervous system Unlike neuromuscular electrical stimulation (NMES) Creates action potential Several different devices available Designed for different areas of the body

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6 Affects individuals who have suffered through a stroke Uses Compex Motion Electric Stimulator Surface stimulation nodes Nodes are placed on areas to be stimulated Anterior and posterior deltoid Biceps and triceps brachialis Flexor and Extensor carpi radialis Flexor and Extensor carpi ulnaris

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8 Symmetrical biphasic current pulses Pulse duration of 250 microseconds 40 Hz frequency Hand switch trigger used by therapist to time arm movements Twice a day for 1 hour sessions over 12 weeks Different movements emulated Touch nose, swing forward, left side up

9 Over time, therapist assisted movement is reduced to a minimum After a stroke, individuals often can not draw circles due to the shoulder and elbow coordination requirement After 12 weeks of FES patients can draw small and large circles, pick up thin objects, and touch their own nose due to the retraining of their muscles and nerves.

10 Gait abnormality due to MS, muscular dystrophy or ALS Peroneal nerve is stimulated Hip flexors and extensors are activated Walkaide device lifts foot while walking Improves walking endurance, speed, and lower limb muscle strength Walking speed increased 15% over 3 months 32% after 6 months 47% after 1 year

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12 Muscles get tired rapidly due to the frequency of electrical stimulation Therapists will increase level of stimulation to battle fatigue which increases fatigue rate Important to optimize stimulation strategy Pain and skin irritation at node placement site Depression due to lack of results

13 Helps individuals across a large span of disabilities Costs $5,000 for device Device and therapy sessions covered by insurance Implantable devices Avoid pain and skin irritation Invasive surgery Advancement in technology More efficient and effective

14 1] "Effect of Intensive Functional Electrical Stimulation Therapy on Upper-Limb Motor Recovery after Stroke." Pysiotherapy Canada : [2] "Functional electrical stimulation in neurological disorders." European Journal of Neurology : [3] "Functional electrical stimulation for spinal cord injury." Mayo Clinic. Web. < [4] "Neuroprosthesis Control Group." Automatic Control Laboratory. Web. < [5] "Functional electrical stimulation." Wikipedia. Web. < [6] "Functional Electrical Stimulation." American Stroke Association. Web. < nal-electrical-stimulation_ucm_310628_article.jsp> [7] "National Clinical FES Centre." University of Bournemouth School of Design, Engineering and Computing. Web. < [8] "The New WalkAide Bi-Flex Cuff." The WalkAide System. Web. < US/Pages/biflexlanding.aspx> [9] "Foot Drop." Wikipedia. Web < [10] "Walk Aide." Eagle Orthopaedics. Web. <