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EMS machine

Electrical stimulation of excitable nerve and muscle tissue is an important therapeutic modality applicable to the clinical treatment of neuromuscular and muscoloskeletal problems wherein the tension of skelatal musculature is affected through gross elicitation of motor unit contraction by an externally applied electrical current. Electrical muscle stimulation (EMS) devices typically employ time varying waveforms which are applied to specific surface sites on muscle groups. Electrical muscle stimulation (EMS) technology utilizes a conductive pad or electrode to externally apply a very weak current to a muscle or group of muscles and thereby cause them to contract. The electrode receives an electric stimulation signal from an external voltage/current source, such as an EMS machine. The stimulation signal can be adjusted in amplitude, polarity, frequency, waveform, etc. Clinical application of electrical stimulation includes facilitation of voluntary motor function, muscle strength enhancement, motion range improvement and spasticity inhibition. Electrical muscle stimulation is commonly used in physical or occupational therapy to strengthen atrophied muscles or paralyzed limbs, and also to exercise muscles that are immobilized for long periods of time as a result of muscular or neurological disorders, extended periods of bed rest arising from injury, surgery, or illness. EMS is also useful for the general exercise of functional muscles to improve muscle tone and strength. TENS and EMS devices apply stimulation signals to a particular area of the human body in order to suppress pain or stimulate a muscle. TENS devices have been used for the symptomatic relief and management of chronic, post-surgical, and post-traumatic acute pain. EMS devices use more powerful waveforms to cause a muscle contraction. These induced muscle contractions are useful in physical therapy for muscle reeducation, retardation of atrophy and increasing a range of motion.

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