Fig. 1

Schematic illustration of the setup. a Participants were equipped with inertial measurement units (IMUs) attached to the lateral sides of the shanks and reflective markers that were attached to the heel and toe region of the shoes. b Three different walking trials were performed: (top) straight-line walking trial, (middle) slalom walking trial, and (bottom) Stroop dual-task walking trial. Straight-line walking and slalom walking were performed only under single-task conditions (indicated by the shoe icon), whereas the Stroop task was as a cognitive-motor dual-task (indicated by the shoe and mobile phone icons). For the Stroop-and-walk trial, we distinguish between steps during straight-line segments (within the dashed vertical lines) and steps during turns (outside of the dashed vertical lines)