Fig. 1

Motion capture laboratory rendering (to scale) with embedded force plates displayed in grey. (A) Ramp setup, where the solid ramp’s incline is 5° and the transparent one (along with the rails) is 15°. Force plates were at the same distance from the beginning of the ramp for both inclines. Force plates on the 15° ramp as well as the rails on one side are not displayed for clarity of illustration. (B) Level ground walking and instrumented stairs setup, where the instrumented stairs (170 mm step height, 410 mm step depth) were removed from the volume when they were not used. Human dummy model courtesy of Gil P. de Paulo37.