Dr. Yannis Dionyssiotis is specialized in Physical Medicine and Rehabilitation. He worked as Research Fellow in the Laboratory for Research of the Musculoskeletal System at the National and Kapodistrian University of Athens, where he completed his Thesis in SCI induced Osteoporosis and Metabolic Bone Diseases; as locum Consultant Physiatrist in the Rehabilitation Department of KAT Hospital in Athens, Head of Physical Medicine and Rehabilitation Department in Rhodes General Hospital and Medical Director of Rehabilitation Center Amyntaio of Florina General Hospital in Greece and as Stationsarzt in the Klinik für neurochirourgische - neurologische Frührehabilitation, Westpfalz-Klinikum, in Germany. Currently, is the Head of Physical Medicine and Rehabilitation Department of European Interbalkan Medical Center in Thessaloniki, Greece. Dr. Dionyssiotis has clinical experience as Physiatrist in a variety of clinical settings as clinician, researcher, clinical instructor and consultant. He also holds a senior European Board Certification in PRM (certified 1/2006), Facharztanerkennung in Germany (PRM) and is registered Physician in the UK. Dr. Dionyssiotis has an extensive list of professional presentations and publications in the areas of rehabilitation, spinal cord injury, multiple sclerosis and osteoporosis. He supports the STEP-ON product with clinical trials, medical reports and scientifically counselling in international exhibitions and classified the indications and contraindications of the product according to the disease. Moreover, his participation during the construction of the new STEP-ON models improved the clinical outcomes of the orthosis. He has served as reviewer for several international, PubMed and peer-reviewed journals. He is elected member of the board of International Society of Musculoskeletal & Neuronal Interactions (ISMNI), of Prevention Committee of International Spinal Cord Society (ISCOS), of Hellenic Osteoporosis Foundation (HELIOS) and has written books and papers for osteoporosis in spinal cord injury, multiple sclerosis, exercise, spinal orthoses, jumping mechanography, falls, and botulinum toxin. He won the Heim Ring Silver award during the 8th Mediterranean Congress of Rehabilitation in Limassol, Cyprus (October 2010) and the European Board award in the 16th European Congress of Physical and Rehabilitation Medicine in Bruges Belgium (June 2008) and the Petros Aposkitis award during the 14th National Rehabilitation Congress, Athens (February 2016). http://publicationslist.org/y.dionyssiotis