Michael Kjaer, MD, DMSc University of Copenhagen, Denmark Dr. Kjaer was educated as a Medical doctor from University of Copenhagen in 1984, and became a Specialist in Rheumatology in 1995. He is Head of Institute of Sports Medicine, Dept of Orthopedic Surgery, Bispebjerg Hospital in Copenhagen and Clinical Professor in Sports Medicine at University of Copenhagen, Denmark. Dr. Kjaer’s research group focuses on adaptation of tendon and skeletal muscle to mechanical loading and physical training, with special emphasize on physiological-pathological adaptation to overloading and regeneration of tissue.