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a mild, rare, congenital form of myotonia characterized by muscle stiffness

a mild, rare, congenital form of myotonia characterized by muscle stiffness

An affection apparently congenital, consisting in tonic contraction and stiffness of the voluntary muscles occurring after a period of muscular inaction.

An affection apparently congenital, consisting in tonic contraction and stiffness of the voluntary muscles occurring after a period of muscular inaction.

Hereditary disease, with rigidity of muscles of arms and legs.

See Myotonia congenita.

An affection of obscure nervous origin, characterized by a tonic spasm of the voluntary muscles, especially at the beginning of a voluntary contraction.