TY - JOUR T1 - Contractile properties of the abductor digiti minimi muscle in paramyotonia congenita JF - Journal of Neurology, Neurosurgery & Psychiatry JO - J Neurol Neurosurg Psychiatry SP - 894 LP - 899 DO - 10.1136/jnnp.37.8.894 VL - 37 IS - 8 AU - David Burke AU - Nevell F. Skuse AU - A. Keith Lethlean Y1 - 1974/08/01 UR - http://jnnp.bmj.com/content/37/8/894.abstract N2 - In two subjects with paramyotonia congenita the isometric torque generated by the abductor digiti minimi and the surface EMG recorded over ADM decreased during prolonged or repetitive contractions, whether these were voluntarily or electrically induced. Isometric twitch times did not alter significantly during this muscle fatigue. Cooling greatly accelerated the fatiguing process. It is suggested that this local muscle weakness is due to a progressive decrease in excitability of the muscle cell membrane. ER -