呼吸肌疲劳在临床上有很重要的意义,它是呼吸衰竭的潜在因素,故其早期诊断很重要。目前检查呼吸肌疲劳的方法分两大类:①临床估计;②实验室检查:包括压力测定、经皮刺激膈神经的测量法、肌电图、X 线检查、肺容量测定、磁强计等。目前这些检查方法大部分较繁琐,不适合用于病情较重的病人。 Respiratory muscle fatigue in clinical significance, it is a potential cause of respiratory failure, so its early diagnosis is very important. Current methods of checking respiratory muscle fatigue in two categories: ① clinical estimates; ② laboratory tests: including stress measurement, percutaneous stimulation of the phrenic nerve measurement, electromyography, X-ray examination, lung volume determination, magnetometer, etc. . At present, most of these inspection methods are cumbersome and are not suitable for use in patients with severe diseases.