Fig. 1

Ultrasound images showing the thickness of the external oblique (EO), internal oblique (IO), and transversus abdominis (TrA) muscles at end-inspiration (Tei) and maximum cough (Tcough).

Ultrasound images showing the thickness of the external oblique (EO), internal oblique (IO), and transversus abdominis (TrA) muscles at end-inspiration (Tei) and maximum cough (Tcough).