There was no difference of EMG changes between rectus abdominis muscle(63/67, 94.0%) and lower thoracic paraspinal muscle (57/67, 85.1%) in patients with ALS.

• ALS组腹直肌肌电图神经源性改变(63/67,94·0%25)与下胸段脊旁肌肌电图(57/67,85·1%25)的差异无统计学意义;