Fig. 5

Exemplary scatterplots of PEAKSTD, CADENCE, and FATREV with EDSS adjusted test scores of upper-limb capacity from the NAL. GRIP refers to grip strength (higher values indicate better performance), DOT to the distance in a manual pursuit task (lower values indicate better performance), TAP to the upper-limb tapping frequency (higher values indicate better performance). PEAKSTD is the standard deviation of the angular velocity peaks assessed by the smartwatches (higher values indicate higher intensities of upper-limb use), CADENCE is the average of recorded cadences in case of gait (higher values indicate less walking fragmentation), FATREV is the reverse of activity fragmentation (higher values indicate less fragmentation)