Getting a new organ does not mean being "healthy". "You can't do it without comprehensive aftercare," emphasizes Lothar Stein (58). He is a sports therapist and sports scientist and, like physiotherapists and other specialists, is one of those who look after patients' recovery after transplantation. His job is to guide and motivate them in exercise and sport. Lothar Stein has been working at the Institute of Sports Medicine for 20 years. Initially he only worked with transplanted adults, but for some years now he has also been working with children and adolescents. After taking a sports history, he draws up a training plan, which the patients are then asked to implement at home. The sports therapist maintains contact by telephone and telemonitoring. "If they move more and become physically fitter, this always has a positive effect on their mood and quality of life in addition to the positive medical effects. The whole family benefits from this," explains Lothar Stein. For him, seeing children and young people regain their courage after a transplant is one of the best moments in his job.