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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: J Electromyogr Kinesiol. 2013 Nov 1;24(1):144–152. doi: 10.1016/j.jelekin.2013.10.015

Fig. 2.

Fig. 2

Mean normalized EMG integrals (in arbitrary units) of TA (tibialis anterior), RF (rectus femoris), VL (vastus lateralis), VM (vastus medialis) and RA (rectus abdominis) for the three surface support conditions for all subjects for the APA epochs (eyes open). Each column represents the IEMGNORMs for 150 ms of the APA1 and APA2 epochs with its standard error bars. * signifies statistical significant differences (p<0.05) between FEO and WEO.