Least squares joint range of motion (and standard error) for main effects Device Orientation, Keyboard Layout, and Keyboard Location, and p-values for interactions.a,b

aStatistically significant ANOVA results are in bold.bRange of motion was calculated from the difference between the 90th and 10th percentile joint angles within each trial.cThe superscript letters in the table represent results from the Tukey post-hoc analysis: same letters denote groups without significant differences. Values with different letters are ranked such that A>B.