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Paper Information

Journal:   CURRENT JOURNAL OF NEUROLOGY (IRANIAN JOURNAL OF NEUROLOGY)   2016 , Volume 15 , Number 3; Page(s) 182 To 182.
 
Paper: 

BODYBUILDING CHAMPIONSHIPS AND MYOTONIA CONGENITAL

 
 
Author(s):  ROHANI MOHAMMAD*, MIRI SHAHNAZ, REZAI ASHTIANI ALIREZA
 
* DEPARTMENT OF NEUROLOGY, SCHOOL OF MEDICINE, IRAN UNIVERSITY OF MEDICAL SCIENCES, TEHRAN, IRAN
 
Abstract: 

A 25-year-old man presented with a 10-year history of difficulty in relaxing his muscles. He was bodybuilding champion in his city without doing any exercise.
Neurologic examination revealed well-formed skeletal muscles (first part of the video) and myotonia most prominent in the eyes (a lag in opening the eyes after forceful closure) and hands (delayed hand opening after gripping) (second part of the video).
There was percussion myotonia in thenar muscles without prominent muscle weakness. Electromyogram showed myotonic discharges.
Myotonia congenita is a rare hereditary neuromuscular channelopathy characterized by delayed relaxation of skeletal muscles following voluntary contraction, beginning in the first or second decade of the life. It can be associated with muscle hypertrophy, stiffness, transient weakness, or cramping. Only patients with symptomatic myotonia require treatment with medications such as phenytoin, carbamazepine, or procainamide to reduce the excitability of the muscle membrane.

 
Keyword(s): MYOTONIA CONGENITA, BODYBUILDING, MUSCLE HYPERTROPHY
 
References: 
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