include the discovery of osmotically inactive sodium retention in spaceflight and its effects on the musculoskeletal system.

Nutritional Physiology

2009 -	Director Nutritional Health at Profil
2008/2009	Sabbatical at ANZAC Research Institute, University of Sydney, Concord, Australia (Prof. Dr. M.J. Seibel)
2007 -	Co-editor Acta Astronautica
2007	Otto-Lilienthal Award for scientific achievements in space physiology
2004 -	Adjunct associate professor at the Rheinische-Friedrich-Wilhelms University Bonn, IEL-Nutritional Physiology, Germany
2004/2005	Sabbatical at the Nutritional Biochemistry Laboratory, NASA JSC, Houston TX, USA
2003 - 2009	Head of Space Physiology Division, DLR-Institute of Aerospace Medicine, Cologne, Germany
2000	Scientific award of the German Aerospace Center
1998 -	European Space Agency representative in the ‘Nutrition working group’ of the Medical Multilateral Operation Panel for the International Space Station