Spatial Distribution and Asymmetry of Surface Electromyography on Lumbar Muscles of Soldiers with Chronic Low Back Pain

Figure 1

The settings of 1-min Sorensen test. (a) The chronic low back pain patient/healthy control was leaning on the examining table in the prone position with the upper edge of the iliac crests aligned with the edge of the table. (b) The electrode array containing 92 electrodes was placed 20 mm away from the spinal cord midline on both sides.

(a)

(b)