... sent wirelessly to a smartphone, which enables both immediate feedback during the run and subsequent evaluation. The 'JointWatchR' developed by Julian Wolf, Lennard Sielaff, Thilo Richter, Philipp Nicklas, Nora Reichelt and Markus Mann from the Institute of Microstructure Technology at KIT detects unfavorable and harmful joint loads, warns the wearer and thus supports the joint.