Rehabilitation Program for Weaning From Mechanical Ventilator

A threshold inspiratory muscle trainer will be connected to the artificial airway with 15 mm and 22 mm adaptors. Training bouts consist of three to five sets of six repetitions breathing through the trainer. Training will be conducted with the patient in bed with an approximately 30° head-up tilt and with intensity about 40 %- 50 % of maximal inspiratory pressure. Patients will be returned to mechanical ventilation for rest between training sets as needed. Three to five sets of six training breaths will be completed for a total of 18 to 30 training breaths per session. Following each training set, the patient indicated a rating of perceived inspiratory exertion on modified Borg scale . The study group will also receive comprehensive rehabilitation program consist of upper-extremity exercises, lower extremity exercises, pedaling exercises, trunk control exercises and bedside functional training

The same inspiratory muscle training for the study group combined with the traditional physical therapy program consist of positioning , modified postural drainage , percussion , vibration.