Inclusion Criteria (Neuromuscular group):  been diagnosed as neuromuscular disorders by the neurologist at least 20-year-old  Inclusion Criteria (Normal group):  no past history of neurological disorders. The neurological examination performed by the board neurologist must be normal at least 20-year-old  Exclusion Criteria (Neuromuscular and normal group):  Patients who are unable to read the questionnaire, fail to accept all the examinations, and refuse to provide inform consent