Fig. 2

Comparison of muscle synergies extracted during eyes open (OE) and eyes closed (CE) single-limb stance conditions. Color vertical bars represent average recruitment levels Recrk (on the left) and weight vectors Wk (on the right) of the k-synergy, over the sample population, with the superimposition of the standard errors (black lines). The asterisk (*) represents a statistically significant differences between conditions, in the weight vectors and average recruitment levels