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. 2021 Apr 1;11(4):632. doi: 10.3390/diagnostics11040632

Figure 1.

Figure 1

Images representing the positions used to measure TA muscle thickness at rest and contraction in different positions to obtain the CR (a) Transversus abdominis (TA) thickness measurement in supine lying (static at rest) with 60-degree hip flexion, (b) TA thickness measurement in supine lying during holding the lower extremity in the raised position, (c) TA thickness measurement in at rest on Fitball, (d) TA thickness measurement in contraction on Fitball with contralateral foot elevation.