Abstract: Respiratory muscle weakness is more common in critically ill patients, and its occurrence can adversely affect its recovery. New research evidence shows that Inspiratory Muscle Training has a certain degree of improvement. This article described the research progress of Inspiratory Muscle Training in ICU mechanical ventilation patients, including the significance of Inspiratory Muscle Training, training methods, influencing factors. With a view to providing Inspiratory Muscle Training for this type of patients in China to provide reference for early rehabilitation.

Key words: Intensive Care Units; mechanical ventilation; Inspiratory Muscle Training; artificial airway