英语语法分析

Myotonia: Disorder causing difficulty relaxing contracted voluntary muscles.

肌强直：随意肌收缩后松弛困难的一种肌肉疾病。

Myotonia Congenital is a rare heredity disease, and has special clinical features in patients of the family.

先天性肌强直为一少见的遗传性疾病，有着其特殊的临床特征。

Recently study founded this kind of patients often with symptoms, such as the curve of cervical vertebrae change, neck and shoulder aching , myotonia , etc.

近年来有学者发现该类患者常伴有颈椎生理弯曲度的改变及头颈、肩背部肌酸痛、肌强直等症状。