The Impact of Inspiratory Muscle Strength Training

The study is a pre-post test with quasi experimental design. Forty-two intubated-adults who had been mechanically ventilated for more than 21 days were selected on the basis of inclusion criteria in respiratory care ward. These patients were classified equally into study group and control group. The experimental group received the intervention of respiratory muscles training 5 times/ a week for 6 weeks. The control group received normal care. The intervention was adjusted trigger sensitivity to 10% of the first recorded Maximal Inspiratory Pressure at the start of training, then increased the ventilator trigger sensitivity and training duration weekly. The largest of ventilator trigger sensitivity is not over 40% of the initial Maximal Inspiratory Pressure and the timing of training duration is no longer than 30 minutes.