Fig. 1

Data processing pipeline. The yellow area represents the input data, the pink area denotes preprocessing, and the blue areas highlight the three core components of the pipeline: (1) gait detection, (2) detection of gait without other arm activities, and (3) arm swing quantification. In the diagram, light blue parallelograms represent data, dark blue squares represent data processing methods, and transparent diamonds represent data selection processes. The numbers in the parallelograms representing data indicate the mean (SD) minutes of data remaining aggregated across all participants with PD