Books by Mark Klion

Mark Klion, MD, is a board-certified orthopedic surgeon and sports medicine specialist. After receiving a bachelor's degree from St. Lawrence University in upstate New York, he earned his medical degree from the Mount Sinai School of Medicine in New York City. He completed his residency in orthopedic surgery at Mount Sinai Hospital. He then completed a sports medicine fellowship at the University of Chicago. During his fellowship he specialized in arthroscopic surgery and reconstructive knee and shoulder surgery. He is a clinical instructor at the Mount Sinai School of Medicine and a member of their shoulder and sports medicine service. He serves as an educator for the medical school and the department of orthopedic surgery. He is also the director of orthopedics at St. Barnabas Hospital in New York. He performs the newest techniques for cartilage repair, regeneration, and meniscal transplantation. Dr. Klion has extensive experience with arthroscopic rotator cuff repairs and shoulder stabilization procedures.

Dr. Klion is also an avid triathlete and marathon runner. He has completed 10 Ironman triathlons, including Hawaii Ironmans in 2000 and 2001. He has completed 15 marathons and several ultradistance races. He serves as the medical codirector for the New York City Triathlon and Toughman Half Ironman and is the orthopedic consultant for the Triathlon Academy and Foundation bicycle team.

Troy Jacobson has been a leader in the field of triathlon coaching since 1992. He is the owner of Lifesports, Inc., an endurance multisport coaching company, and is recognized as a pioneer in developing and marketing online coaching services. He is the innovator and driving force behind the popular endurance sport training DVDs Spinervals, Runervals, and Swimervals. He created Train Right software, an intuitive coaching program chosen as the official software of Tri-Fed USA.

In 1996 Tri-Fed became USA Triathlon, and Jacobson became a member of the inaugural USA Triathlon coaching committee. When triathlon made its debut at the 2000 Olympic Games in Sydney, he was coach of the first U.S. finisher, Joanna Zeiger. He is an official Ironman coach and also serves as head multisport coach at Life Time Fitness, a publicly traded national health club chain.

Jacobson has been a competitive triathlete since 1988 and continues to compete at the elite masters level. In the 1990s he became a professional triathlete, winning several USA Triathlon Long Course National Championships and placing as high as 20th overall at the Ironman Triathlon World Championships.