The most effective way to detect<unk> s may be surface electromyography (EMG). Surface EMG is more sensitive than needle electromyography and clinical observation in the detection of<unk>  in people with amyotrophic lateral sclerosis. Deeper areas of contraction can be detected by electromyography (EMG) testing, though they can happen in any skeletal muscle in the body.<unk> s arise as a result of spontaneous depolarization of a lower motor neuron leading to the synchronous contraction of all the skeletal muscle fibers within a single motor unit. An example of normal spontaneous depolarization is the constant contractions of cardiac muscle, causing the heart to beat. Usually, intentional movement of the involved muscle causes<unk> s to cease immediately, but they may return once the muscle is at rest again. Tics must also be distinguished from<unk> s. Small twitches of the upper or lower eyelid, for example, are not tics, because they do not involve a whole muscle, rather are twitches of a few muscle fibre bundles, that are not suppressible.
Fasciculation
Fascia
Dystrophy
Synesthesia
Spasticity
Monoplegia
Pallesthesia
Dysesthesia