Fig. 2

Distribution of AMAI scores during active (A) and sleep (B) intervals. Scores range from 0 to 1; values approaching 1 indicate greater symmetry, values of 1 indicate perfect symmetry, and values of 0 indicate completely unilateral movement (perfectly asymmetric). Differences between stroke and control participants were statistically significant (α = 0.05) for each activity level (see Additional file 1: Table A for relevant statistical test results)