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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Exp Brain Res. 2019 Mar 15;237(5):1361–1374. doi: 10.1007/s00221-019-05510-5

Figure 2.

Figure 2

An illustration of the experimental setup and participant’s initial position with the arms across the chest. The black circle on the horizontal line displayed on the screen showed the initial COP position at the steady state. The other two black circles showed the targets for COP shifts forward (Target-F) and backward (Target-B). The electrode placement on the right side of the body is shown with black rectangles except for the rectus abdominis (RA); thoracic erector spinae (EST); tensor fasciae latae (TFL) and lumbar erector spinae (ESL). The other electrodes were positioned at TA: tibialis anterior; SOL: soleus; GM: gastrocnemius medialis; GL: gastrocnemius lateralis; BF: biceps femoris; ST: semitendinosus; RF: rectus femoris; VL: vastus lateralis; and, VM: vastus medialis.