Jon Haas is a certified Underground Strength Coach -Level 2, an ACE and FMS certified Personal Trainer, and has been involved in the martial arts for over 30 years. He has been training in the Budo Taijutsu warrior arts of the Bujinkan for more than 25 years and is currently ranked as a Kudan (9th degree black belt) under Jack Hoban Shidoshi. Since 2009 he has been studying Aiki and internal power training with Dan Harden, as well as training in Yiquan, an internal Chinese martial art. He is the founder of Warrior Fitness Training Systems and author of the book, Warrior Fitness: Conditioning for Martial Arts, as well as numerous other online training and private coaching programs. For more information, please visit www.warriorfitness.org