Fig. 3From: Medial part thickness of wearable device affecting running motion(This image is adapted from an open-sourced figure (https://upload.wikimedia.org/wikipedia/commons/4/45/Anatomical_Planes-en.svg))Planes and axes around a runner and a running environment. In this paper, x-axis is a running direction of a treadmill and x–z plane is upper face of the treadmill belt. An origin of the coordinate system is a left rear corner of the treadmillBack to article page