It is a form of myotonia where the distal muscles, particularly the hands and feet, fail to relax immediately after voluntary contraction.
The affected area can feel like a solid, immovable piece, similar to a spasm. It is often a symptom of underlying neuromuscular disorders rather than a disease on its own. acromyotonia
It is associated with disorders involving muscle stiffness, such as paramyotonia congenita or types of dystrophic myotonia . It is a form of myotonia where the
It should not be confused with the (part of the shoulder) or acromegaly (a growth hormone disorder). particularly the hands and feet