myotonia motor neuron

例句：

1. 1. Myotonia is a rare conditionthat affects the muscles and can cause difficultyin movement.
   肌张力障碍是一种罕见的状况，影响肌肉并可能导致运动困难。
2. 2. Thepatient had myotonia, which madeit difficult for him to walk.
   患者有肌张力障碍，这使他行走变得困难。
3. 3. The doctor diagnosed the patient with myotonia and prescribed medication to help managehis symptoms.
   医生诊断出患者患有肌张力障碍，并开了药来帮助管理他的症状。