Figure 3.

Maximum static inspiratory (MIP) and pulmonary function tests were performed to assess the global inspiratory function in accordance to the recommendations provided by the American Thoracic Society. The MIP was measured using a manometer (Inspiratory Force Meter, Model 4103; Boehringer, Norristown, PA, USA). Spirometry was performed using a MicroLab® spirometer (CareFusion, Basingstoke, UK), and the forced expiratory volume in 1 s (FEV₁) was determined. Comparison of the (A) MIP and (B) FEV₁ at baseline and weekly over the course of concurrent chemoradiation therapy (CCRT) in the control (-♦-) and training groups (--■--).