1. Department of Experimental Pharmacology and Toxicology, Cardiovascular Research Center, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
2. German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
3. Department of Cardiovascular Surgery, Cardiovascular Research Center, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
4. K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, 7030 Trondheim, Norway.
5. Norwegian Council on Cardiovascular Disease, Oslo, Norway.
6. Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
7. Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Boston, MA 02114, USA.
8. Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland, UK.