1. Working group physical activity–related preventive research, Institute of Movement Therapy and Movement-oriented Prevention and Rehabilitation, German Sport University Cologne, Koln, Germany
2. Medical Psychology and Medical Sociology, University Medicine Mainz, Mainz, Germany
3. Department Preventative and Rehabilitative Sports and Performance Medicine, German Sport University Cologne, Institute of Cardiology and Sports Medicine, Cologne, Germany
4. Department Molecular and Cellular Sports Medicine, German Sport University Cologne, Institute of Cardiology and Sports Medicine, Cologne, Germany
5. Clinic and Policlinic for Psychosomatic and Psychotherapy, University Hospital Cologne, Cologne, Germany