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. 2021 Feb 26;11:4783. doi: 10.1038/s41598-021-83837-2

Figure 4.

Figure 4

Raw and rectified 6 Hz low-pass filtered muscles activity of a typical participant of each group, recorded during one single trial. Vertical blue dashed line indicates muscles onset (t0). Muscle abbreviations: ST semitendinosus, RF rectus femoris, SOL soleous, TA tibialis anterior. Control participants’ anticipation compared with CLBP results.