研究发现,慢性阻塞性肺疾病(COPD)患者在激烈运动后,并不出现膈肌疲劳[1,2],提示COPD患者在运动时可能存在着呼吸中枢的反馈抑制以防止呼吸肌疲劳。要证明这一假设就必须准确地评价中枢驱动。膈肌肌电可能是评价中枢驱动的一个好方法。研究提示多导食道电极记录的膈肌肌电能有 The study found that patients with chronic obstructive pulmonary disease (COPD) did not develop diaphragmatic fatigue after vigorous exercise [1,2], suggesting that there may be feedback inhibition of the respiratory center in COPD patients to prevent respiratory muscle fatigue. To prove this assumption we must accurately evaluate the central drive. Diaphragmatic myoelectricity may be a good way to evaluate central drive. Research suggests that the multi-channel esophageal electrode records the myoelectricity of the diaphragm