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  2. Dystonia - Wikipedia

    en.wikipedia.org/wiki/Dystonia

    Dystonia. Dystonia is a neurological hyperkinetic movement disorder in which sustained or repetitive muscle contractions occur involuntarily, resulting in twisting and repetitive movements or abnormal fixed postures. [3] The movements may resemble a tremor. Dystonia is often intensified or exacerbated by physical activity, and symptoms may ...

  3. Cramp - Wikipedia

    en.wikipedia.org/wiki/Cramp

    Cramp. A cramp is a sudden, involuntary, painful skeletal muscle contraction [1][2] or overshortening associated with electrical activity; [3] while generally temporary and non-damaging, they can cause significant pain and a paralysis -like immobility of the affected muscle. A cramp usually goes away on its own over a period of several seconds ...

  4. Writer's cramp - Wikipedia

    en.wikipedia.org/wiki/Writer's_cramp

    Writer's cramp or focal hand dystonia (FHD) is an idiopathic movement disorder of adult onset, characterized by abnormal posturing and movement of the hand and/or forearm during tasks requiring skilled hand use, such as writing. [1][2] Overcontraction of affected muscles, cocontraction of agonist and antagonist pairs, and activation of muscles ...

  5. Peripheral neuropathy - Wikipedia

    en.wikipedia.org/wiki/Peripheral_neuropathy

    Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy).

  6. Cramp fasciculation syndrome - Wikipedia

    en.wikipedia.org/wiki/Cramp_fasciculation_syndrome

    Cramp fasciculation syndrome (CFS) is a rare [1] peripheral nerve hyperexcitability disorder. It is more severe than the related (and common) disorder known as benign fasciculation syndrome ; it causes fasciculations , cramps, pain, fatigue, and muscle stiffness similar to those seen in neuromyotonia (another related condition). [ 2 ]

  7. Essential tremor - Wikipedia

    en.wikipedia.org/wiki/Essential_tremor

    Essential tremor (ET), also called benign tremor, familial tremor, and idiopathic tremor, is a medical condition characterized by involuntary rhythmic contractions and relaxations (oscillations or twitching movements) of certain muscle groups in one or more body parts of unknown cause. [6] It is typically symmetrical, and affects the arms ...