Figure 4. Inspiratory phase ratio (PhRIB) between the rib cage and abdomen compartments (A) and between the pulmonary rib cage and abdominal rib cage (B). Data are presented as the mean (X) and standard deviation. RC: rib cage; AB: abdomen; RCp: pulmonary rib cage; RCa: abdominal rib cage. * p<0.005 for rest × breathing exercises; † p<0.005 for diaphragmatic breathing × inspiratory sighs, SMI, and intercostal exercise; ‡ p<0.005 for inspiratory sighs × SMI and intercostal exercise.
