Mark Ginther was born in Seattle, Washington and has always had an interest in martial arts, strength training, and science. Since 2000 he has worked as a strength & conditioning coach for MMA fighters and kickboxers in the US, Japan and Thailand. He has trained some of the best in the world, including Mark Hunt and Nicholas Pettas, and was a sparring partner for Josh Barnett. He has written many articles and columns about strength training for fighters including long-running columns in 'Full Contact Fighter' and 'Ironman Japan'. K.O. Power is his first book and is the culmination of his 15 years experience as a trainer and coach.