Fig. 3
From: Using ultrasound to assess the thickness of the transversus abdominis in a sling exercise
Measurement method. 1 Ultrasound image of the abdominal area on the APC, edited by manual set points. Indicates are the external oblique (EO), the internal oblique (IO) and the transverse abdominis (TrA). 2 Sectional area (grey band area) processed in MatLab® to determine the area between the superficial fascia (upper line with dotts) and the deep fascia (lower line with crosses) of the TrA (see data analysis)