IDEA Health & Fitness Experts

IDEA partners with over 400 of the most respected fitness experts in the world. Find out more about them here.
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Len Kravitz, PhD

Len Kravitz, PhD, is the program coordinator of exercise science and a researcher at the University of New Mexico in Albuquerque, where he recently won the Outstanding Teacher of the Year award. Len was also honored as the 2006 Fitness Educator of th... more

Jeff Kress, PhD

Jeff Kress, PhD, is an associate professor a Cal State Long Beach. He is also the developer and director of the Long Beach State OutBAC (Outdoor Beach Adventure Course), an outdoor facility devoted to the development of team cohesion and leadership. ... more

Sarah Kruse

Sarah Kruse is a freelance writer and former senior editor at IDEA. more

Susan Kundrat, MS, RD/LD

Susan Kundrat, MS, RD, LD, is an IDEA contributing editor and owner of Nutrition on the Move, a sports and wellness nutrition consulting business located in Urbana, Illinois. She consults with many high-school and college teams and is the sports nutr... more