About the Authors Jon Pearson is the President of Summit Fitness Services, which provides wellness training programs for emergency service groups and other clients. He managed a multidisciplinary team of experts in the fire service and health sciences to design this manual specifically for fire and emergency medical service personnel. Previously he served as a consultant to the United States Fire Administration and as an instructional designer and developer on many National Fire Academy courses and videotapes.John Hayford, M.S., is Exercise Physiology Coordinator for the National Hospital for Orthopaedics and Rehabilitation. He directs programs for health and fitness promotion involving a comprehensive series of medical and physical fitness examinations and assessments. Mr. Hayford's clients include fire and rescue departments, law enforcement agencies, corporations, athletic teams/clubs, and members of the general public.Wendi Royer, M.S., is a certified Professional Aerobics Instructor, and aerobics director for the Citicorp Fitness Center. She develops and conducts training for aerobics instructors, and participates in training development projects for the National Fire Academy and Emergency Management Institute. She has also served as manager and nutritional consultant to weight loss centers.