Figure 2. Data regarding the percentage contribution of each compartment of the chest wall (i.e. pulmonary rib cage - RCp, abdominal rib cage - RCa and abdomen - AB). Data are presented as the mean (X) and standard deviation. Vrcp%: percentage of contribution of the pulmonary rib cage to tidal volume; Vrca%: percentage of contribution of the abdominal rib cage to tidal volume Vab%: percentage of contribution of the abdomen to tidal volume. * p<0.005 for rest × breathing exercises; † p<0.005 for diaphragmatic breathing × inspiratory sighs, SMI, and intercostal exercise.
