This invention comprises wearable deformable electromagnetic energy pathways which enable ambulatory (camera-free) three-dimensional human body motion capture including trans joint pitch, yaw, and roll. It can be embodied in a plurality of elongate electrically-conductive strips which diverge as they span a body joint in a proximal to distal manner and pairs of electromagnetic energy emitters and receivers which are in electromagnetic communication with the strips. In an example, conductive-fluid-filled lumens can be used instead of electrically-conductive strips.