Meet the writers

Johnson Fitness coaches - Jenny Hadfield, Joli Guenther, Ken Grall               Joli Guenther is a certified personal trainer, yoga instructor, and clinical social worker practicing in and around Madison, Wisconsin. She especially loves working with clients on holistic health issues, work-life balance, and fitness for joy and function in daily life. When not working or working out, she enjoys cooking, gardening, and other hobbies related to her 100 year old farm house and acreage in rural Wisconsin and seeking out adventures with her two young children, husband, and chocolate lab named Gus. Coach Jenny Hadfield is a published author (Marathoning for Mortals, Running for Mortals, Training for Mortals), writer, coach, public speaker and endurance athlete. She has a Bachelor’s degree in Exercise Physiology, a Master’s Degree in Exercise Science and is a certified coach and personal trainer. She is a columnist for RunnersWorld.com, Active.com and has written for Women’s Running Magazine, Cooking Light, HEALTH, and Women’s Health. Coach Jenny has competed in hundreds of running and adventure races all over the world, including the Boston Marathon, Eco-Challenge in Borneo, New Zealand, and Fiji, and the Inca Trail and Antarctica Marathons. Her unique coaching style draws from her struggles to get started in running to crossing the finish line at the Boston Marathon. Ken Grall is a Certified Strength & Conditioning Specialist (CSCS) through the National Strength & Conditioning Association, as well as a Youth Fitness Specialist (YFS) through the International Youth Conditioning Association. Ken has trained and coached in the fitness and sports performance fields since 1992, having worked with all fitness levels from the beginning exerciser all the way up to professional athletes. Since 2009 Ken has owned and operated Edge Fitness in the Madison, WI area where they specialize in group fitness and personal training.  That same year he also became an Athletic Revolution franchisee – one of the nation’s top youth fitness and sports performance training businesses – where they have worked with hundreds of local athletes and coaches focusing on total athletic development, injury prevention and education.