Any procedure used to stimulate muscle tissue by electricity falls under the general category of electrical muscle stimulation. Various types of modalities, frequencies, and waveforms can be used to stimulate muscle fibers electrically. Common objectives of electrical muscle stimulation include the reduction of spasticity and the exercise of weak muscles.
Muscle stimulation is an excellent therapy in situations of muscle spasticity if the spasm is not a protective (antalgic) spasm following trauma (eg, in fractures or severe arthritis). Such stimulation is also beneficial in fibrositis or myositis when a tetanizing current is used.