Simon Kolb is a research assistant and doctoral student at the Institute of Sport and Sport Science (IFSS) at the Karlsruhe Institute of Technology (KIT). His main tasks are in the MoMo study, where he supports the project management as an assistant in the planning, organization, and administration of the study. In terms of content, Simon is primarily concerned with the device-based recording of physical activity. He is also significantly involved in the design and drawing of the sample.