1. Department of Epidemiological Methods and Etiological Research, Leibniz Institute for Prevention Research and Epidemiology—BIPS , Bremen, Germany
2. Faculty of Mathematics and Computer Science, University of Bremen , Bremen, Germany
3. Department of Epidemiology and Health Reporting, Robert Koch Institute , Berlin, Germany
4. Department of Sport Science and Sport, Friedrich-Alexander University Erlangen-Nürnberg , Erlangen, Germany
5. Department of Geriatrics and Gerontology, Poznan University of Medical Sciences , Poznan, Poland
6. Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo , Oslo, Norway
7. School of Public Health, Physiotherapy and Sports Science, University College Dublin , Dublin, Ireland