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  2. 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]

  3. Writer's cramp - Wikipedia

    en.wikipedia.org/wiki/Writer's_cramp

    [1] [2] Overcontraction of affected muscles, cocontraction of agonist and antagonist pairs, and activation of muscles inappropriate to a task all impair use of the affected hand. [3] Writer's cramp is a task-specific focal dystonia of the hand. [4] 'Focal' refers to the symptoms being limited to one location (the hand in this case), and 'task ...

  4. Benign fasciculation syndrome - Wikipedia

    en.wikipedia.org/wiki/Benign_fasciculation_syndrome

    Benign fasciculation syndrome (BFS) is characterized by fasciculation (twitching) of voluntary muscles in the body. [1] The twitching can occur in any voluntary muscle group but is most common in the eyelids, arms, hands, fingers, legs, and feet.

  5. Cadaveric spasm - Wikipedia

    en.wikipedia.org/wiki/Cadaveric_spasm

    Cadaveric spasm may affect all muscles in the body, but typically only groups, such as the forearms, or hands. Cadaveric spasm is seen in cases of drowning victims when grass, weeds, roots or other materials are clutched, and provides evidence of life at the time of entry into the water.

  6. Dystonia - Wikipedia

    en.wikipedia.org/wiki/Dystonia

    Symptoms vary according to the kind of dystonia involved. In most cases, dystonia tends to lead to abnormal posturing, in particular on movement. Many individuals with the condition have continuous pain, cramping, and relentless muscle spasms due to involuntary muscle movements. Other motor symptoms are possible including lip smacking. [16]

  7. Tetany - Wikipedia

    en.wikipedia.org/wiki/Tetany

    Position of Hands in the Spasm of Tetany (1905) Tetany is characterized by contraction of distal muscles of the hands (carpal spasm with extension of interphalangeal joints and adduction and flexion of the metacarpophalangeal joints) and feet (pedal spasm) and is associated with tingling around the mouth and distally in the limbs.

  8. Spasm - Wikipedia

    en.wikipedia.org/wiki/Spasm

    A spasm is a sudden involuntary contraction of a muscle, [1] a group of muscles, or a hollow organ, such as the bladder. A spasmodic muscle contraction may be caused by many medical conditions, including dystonia .

  9. Focal dystonia - Wikipedia

    en.wikipedia.org/wiki/Focal_dystonia

    Focal dystonia, also called focal task-specific dystonia, is a neurological condition that affects a muscle or group of muscles in a specific part of the body during specific activities, causing involuntary muscular contractions and abnormal postures.