Myotonia happens when your muscles don’t relax as they should after they contract. It can impact muscles throughout your body and may cause other symptoms depending on the type of …

Myotonia is a symptom of a small handful of certain neuromuscular disorders characterized by delayed relaxation (prolonged contraction) of the skeletal muscles after voluntary contraction …

May 1, 2023 · Myotonia is, by definition, the impairment of relaxation of skeletal muscles after voluntary contraction or electrical stimulation. Many etiologies result in myotonia, including …

Jan 14, 2025 · Myotonia congenita is a rare genetic condition that causes myotonia. This prevents your muscles from relaxing properly after they contract. For example, your child might not be …

Dec 12, 2022 · Myotonic dystrophy (DM) is an inherited multisystem condition that mainly causes progressive muscle loss, weakness and myotonia. It can also affect other parts of your body, …

Aug 28, 2023 · Myotonia, defined as a delay or failure of relaxation in contracted skeletal muscle, is considered to be the hallmark of the disease and results in prolonged rigidity resulting in …

Jul 19, 2024 · Myotonia congenita is an inherited neuromuscular disorder characterized by the inability of muscles to quickly relax after a voluntary contraction. The condition is present from …

The nondystrophic myotonias are rare muscle hyperexcitability disorders caused by gain-of-function mutations in the SCN4A gene or loss-of-function mutations in the CLCN1 gene. …

Dec 6, 2024 · The increased muscle tone of myotonic muscular dystrophy is described as myotonia, and it manifests as a prolonged contraction and slowed relaxation of the muscles. …

Sep 17, 2007 · Myotonia congenita is a rare genetic disorder in which an abnormality of voluntary (skeletal) muscle fiber membranes causes an unusually exaggerated response to stimulation …