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. Author manuscript; available in PMC: 2011 May 28.
Published in final edited form as: J Biomech. 2010 Feb 24;43(8):1476–1482. doi: 10.1016/j.jbiomech.2010.01.037

Figure 5a & 5b.

Figure 5a & 5b

Figure 5a & 5b

The distribution of mean and standard error of EMG RMS values (µV) for upper lip (5a) and lower lip (5b) recording sites for all participants during the ‘face-relaxed’ non-participatory conditions. Eighty-five observations at each interangle span except at 25 mm, where there were only 3 observations.