PERLS 207 feb 9.docx

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University of Alberta
Physical Education, Recreation and Leisure Studies
Joel Edwards

FESFeb 7 Neuromuscular electrical stimulation NMES to improve muscle quality and functionNeuromuscular Electrical Stimulation NMES is y A way to generate muscle contractions for people who have lost voluntary muscle control due to injury or disease y An external electrical current is applied on the surface of the skin to activate neural pathways and produce a muscular contraction y Contractions are generated by the simultaneous contractions of many motor unitsThe Motor Unit definition y Defined As motor neuron and all of the muscle fibres it activates y A motor neuron is a neuron in the spinal cord that sends signals to Muscle fibers to tell them to contract it controls motor responses y Each muscle fiber is connected to one motor neuron specificity of control y An entire muscle is activated by many motor unitsThe Application of Electrodes On The Skin Surface y NMES activates motor neurons resulting in the simultaneous contraction of many motor unitsPros and Cons of Surface NMESAdvantages y Noninvasive y Easy to reuse surface electrodes y East to apply and removeDisadvantages y Not everyone can use NMES
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