VisSim (Visualization and Simulation) is an interdisciplinary research group of the Institute for Computational Visualistics and MTI Mitterhein, Institute of medical engineering and information processing at the University of Koblenz. It deals with visualisation of human structures and their biomechanical simulation. Specialists in the fields of computational visualistics, biomedical computer modeling, biology. sport science, and maths work in close collaboration with researchers and companies working on medical engineering to achieve innovative solutions for improvement of medical products and planning of surgeries.

Another focus of research is the analysis of movement and the arising change of strain within structures of the human body. Special attention is given to investigation and analyses of the biomedical impact of normal weight and obesity to humans structures.