The Effect of Inspiratory Muscle Training on Breast Cancer Patients Undergoing Surgery

inspiratory muscle training will be done by using a pressure threshold loading device (Threshold Inspiratory Muscle Training, Respironics, Pittsburg, PA, USA). By using a spring-loaded one-way valve, this device provides air flow-independent resistance to inspiration at a detectable intensity.

Exercise training sessions under the supervision of an experienced physiotherapist were conducted for 30 minutes, 3 times per week, with intensity ranging between 13 and 15 on the rated perceived exertion scale (RPE).