Abstract
Task-specific action dystonia, also known as occupational cramp, is a focal dystonia which is absent at rest and occurs only during the performance of repetitive, highly skilled movements. Currently, the most common task-specific dystonias are writer’s cramp and musician’s dystonia. The condition has also been described among recreational athletes including pistol-shooters, dart throwers, long-distance runners, table tennis players, and golfers. These are uncommon disorders which often go undiagnosed for long periods of time. Here we describe a case of task-specific action dystonia in a competitive rower. This appears to be a task-specific action dystonia because of its exclusive occurrence during performance of a skilled motor task, its occurrence after a prolonged period of intensive training, and the absence of any contributory neurologic or orthopedic abnormalities.
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References
Torres-Russotto D, Perlmutter JS. Task-specific dystonias: a review. Ann NY Acad Sci. 2008;1142:179–99.
Le Floch A, Vidhailet M, Flamand-Rouviere C, et al. Table tennis dystonia. Mov Disord. 2010;25:394–7.
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Hyperabduction of the right upper arm and failure to fully plant the toes of the right foot are evident during the backstroke.
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Bhidayasiri, R., Tarsy, D. (2012). Rower’s Dystonia. In: Movement Disorders: A Video Atlas. Current Clinical Neurology. Humana, Totowa, NJ. https://doi.org/10.1007/978-1-60327-426-5_56
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DOI: https://doi.org/10.1007/978-1-60327-426-5_56
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Publisher Name: Humana, Totowa, NJ
Print ISBN: 978-1-60327-425-8
Online ISBN: 978-1-60327-426-5
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