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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: J Neural Eng. 2011 Oct 6;8(6):066002. doi: 10.1088/1741-2560/8/6/066002

Figure 2.

Figure 2

HDsEMG and iEMG MUAP waveforms of three MUs averaged from a 10% MVC contraction. The top traces show the unfiltered monopolar HDsEMG waveforms from ten rows (R2–R11) and three columns (C1, C2, C4) of the 2-D array electrode. The bottom traces show the corresponding iEMG waveforms from three needle electrodes, high-pass filtered at 1 kHz. Two “bad” HDsEMG channels (R2C4, R7C1) were excluded from the CKC decomposition analysis. R10 and C3 were not available since they were reserved for needle insertion. For each MU, the iEMG channel used in the accuracy assessment procedure is shown with a star.