Fig. 3

Mean (± standard deviation) support upper extremity muscle activity according to normalized for modified-Closed Kinetic Chain Upper Extremity Test touch duration, with MVIC for Maximum Voluntary Isometric Contraction. \(\:\cdots\:\) highlight the crossing hands time. $ depicts significant effect of interaction muscle*phase (p < 0.05); †depicts significant main effect of muscle (p < 0.05); ¥ depicts significant main effect of phase (p < 0.05). Pairwise comparisons are presented in the Table S3 of additional file 1