| 2005 -2007 | Trustee, International Academy of Astronautics |
| 2005 -- | Chair, Institute of Physiology |
| 2001 -2003 | Senate member, Karl Franzens University |
| 2001 -2004 | Deputy chair, Institute of Physiology |
| 2000 -2001 | Chair, Institute of Physiology |
| 1998 -- | Member of the Council of Trustees, International Society for Gravitational Physiology |
| 1997 -- | Secretary, Austrian Physiological Society |
| 1995 -- | Full professor, Institute of Physiology |
| 1994 -2010 | Founder and director, Institute of Adaptational & Spaceflight Physiology |
| 1993 -2000 | Scientific Director, Styrian Dietetics Academy |
| 1988 | tit. ao. Univ.-Prof. |
| 1985 -- | IUPS Correspondent in Gravitational Physiology |
| 1984 -1985 | Research Fellow, Ames Research Center (Moffett Field, California) |
| 1981 | Professorial examination |
| 1979 -1983 | Secretary, Austrian Physiological Society |
| 1974 | Graduation: M.D. |
| 1970 -- | University of Graz: Physiological research & teaching |
| 1999 | Juri-Gagarin-Orden |
| 1993 | Forschungspreis des Landes Steiermark |
| 1986 | Höchst-Preis |
| 1986 | NASA Space Act Tech Brief Award - ARC-11686 |
| 1984 | European Space Agency Fellow |
| 1980 | Höchst-Preis |
| 1978 | Höchst-Preis |
| 1998 -2011 | Internationale Gesellschaft für Gravitationsphysiologie Trustee |
| 1997 -2011 | Österreichische Physiologische Gesellschaft Sekretär |
| 1985 -2011 | Internationale Union für Physiologische Wissenschaften Korrespondent |
| 2008 -2010 | Wissenschaftliche Gesellschaft der Ärzte in der Steiermark Präsident |
| 2004 -2010 | Verein 'Institut für Adaptive und Raumfahrtphysiologie' Vorsitz |
| 2002 -2010 | Franz Lanyar-Stiftung Vorsitzender |
| 2006 -2008 | Europäische Wissenschaftsstiftung Moderator / Rapporteur / Editor |
| 2005 -2008 | Section 3 (Life Sciences), International Academy of Astronautics Trustee |
| 1997 -2005 | Österreichische Gesellschaft für Weltraummedizin Sekretär |
| 1979 -2005 | Wissenschafliche Gesellschaft der Ärzte in der Steiermark Schriftleiter |
| 2009 -2011 | EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY: Advisory Board Member |
| 2005 -2011 | JOURNAL OF GRAVITATIONAL PHYSIOLOGY: |
| 2003 -2011 | ACTA PHYSIOL HUNG: |
| 2000 -2011 | CLINICAL PHYSIOLOGY: |
| 1985 -2011 | WIENER MEDIZINISCHE WOCHENSCHRIFT: |
| 2000 -2010 | EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY |
| 2000 -2007 | JOURNAL OF APPLIED PHYSIOLOGY |
| 2001 -2007 | AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY |
| 2006 -2006 | STRESS - THE INTERNATIONAL JOURNAL ON THE BIOLOGY OF STRESS |
| 2000 -2005 | ACTA PHYSIOL HUNG |
| 2000 -2005 | AEROSPACE MEDICINE AND HUMAN PERFORMANCE |
| 2000 -2005 | CLINICAL PHYSIOLOGY |
| 2000 -2005 | DIABETES-METABOLISM RESEARCH AND REVIEWS |
| 2000 -2005 | EUROPEAN JOURNAL OF CLINICAL INVESTIGATION |
| 2000 -2005 | PHYSIOLOGICAL RESEARCH |
| 2000 -2005 | THE JOURNAL OF PHYSIOLOGY |
| 2000 -2005 | WIENER MEDIZINISCHE WOCHENSCHRIFT. SUPPLEMENT. |
| 2008 | Berufung: Gutachter: Veterinärmedizinische Universität Wien Physiologie |
| 2009 -2010 | European Science Foundation - France |
| 2000 -2005 | European Space Agency (ESA) - France |
| 2007 | 16th Humans in Space Symposium (Beijing) Wissenschaftlicher Beirat/Beirätin |
| 2005 | 15th Humans in Space Symposium Organisator |
| 2005 | 6th International Head-Out Water Immersion Symspoium Mitglied Organisationskomitee |
| 1999 | 4th International Water Immersion Symposium Organisator |
| 1987 | 3rd European Symposium on Life Sciences Research in Space Organisator |