Methods: Thoracic paraspinal muscles, sternocleidomastoid muscles, tongue muscles and three-limb muscles were analysed with electromyography in 30 patients who had been identified as having ALS.

• 方法对30例临床确诊的ALS患者的胸段棘旁肌、胸锁乳突肌、舌肌及3肢体肌的肌电图进行分析。