Fig. 5.

Mean (±SE) normalized trunk rotation (A), trunk rotation onset (B), pelvic rotation (C), pelvic rotation onset (D), and trunk-pelvic rotation difference (E) across conditions [loud acoustic stimuli (LAS) at −500, −200, and 0 ms relative to the go, and the control reach condition)] in healthy controls and during the nonparetic (NP) and paretic (P) arm reaching in individuals with stroke. *P < 0.05. Note that trunk and pelvic onsets are presented relative to reach onsets. In A, C, D, and E, there were no significant group × LAS condition or paretic arm × LAS condition interactions. In B, there was a significant group × LAS condition interaction but no significant paretic arm × LAS condition interaction.