Research Article
Pain Catastrophizing Is Related to Static Postural Control Impairment in Patients with Nonspecific Chronic Low Back Pain: A Cross-Sectional Study
Figure 1
Ultrasound images and measures of transversus abdominis muscles. (a) Relaxed state. (b) Contracted state. EO: external oblique; IO: internal oblique; TrA: transversus abdominis; ST: subcutaneous tissue; and ADIM: abdominal drawing-in manoeuvre.
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