Gamstorp specifically excluded clinical myotonia from her syndrome: "The typical inability to relax after a muscle contraction in myotonia congenita is not seen during or between attacks of adynamia ...

Background A 56-year-old woman was referred to a neurogenetic clinic with a history of stiffness and transient weakness. A previous needle electromyogram had confirmed the presence of myotonia, but a ...

A weak hand grip isn't just a sign of weakness or ageing related issues but could be an indicator of a range of health troubles from type 2 diabetes, cardiovascular issues, stroke, kidney and liver ...