Fig. 3

Differences and relationships between outcome measures obtained by the Kinarm Standard Analyses (KSA) and our custom analyses (Robot) for younger controls (YC), older controls (OC), and individuals post-stroke (IPS). The left column shows bar graphs and individual markers to represent both group and individual performance. Dashed lines between markers are used connect participants between devices. Differences between analyses were determined using Paired Permutation Tests. If differences between analyses are observed, p values are shown above the comparison. The right column shows correlations between both analyses’ outcome measures for each group. All in the figure legend represents collapsed groups. Markers represent an individual’s performance and solid lines represent fits using bootstrapped parameters obtained from performing Ordinary Least Squares on each group. (A) Average Reaction Time comparisons between the KSA and custom analysis for YC (KSA: 0.32 s, Robot: 0.28 s), OC (KSA: 0.35 s, Robot: 0.31 s), and IPS (KSA: 0.48 s, Robot: 0.39 s). (C) Average Max Speed comparisons between the KSA and custom analysis for YC (KSA: 22.17 cm/s, Robot: 22.18 cm/s), OC (KSA: 19.45 cm/s, Robot: 19.45 cm/s), and IPS (KSA: 18.89 cm/s, Robot: 18.18 cm/s). (E) Average Initial Direction Error comparisons between the KSA and custom analysis for YC (KSA: 2.38°, Robot: 2.26°), OC (KSA: 3.02°, Robot: 2.67°), and IPS (KSA: 7.89°, Robot: 4.74°). (G) Average Normalized Movement Time comparisons between the KSA and custom analysis for YC (KSA: 0.12 s/cm, Robot: 0.11 s/cm), OC (KSA: 0.12 s/cm, Robot: 0.11 s/cm), and IPS (KSA: 0.17 s/cm, Robot: 0.16 s/cm)