The physics of Krav Maga In The Physics of Krav Maga John Eric Goff explains the science behind dozens of Krav Maga moves from headlocks to hammer fists. Focusing on Warrior Krav Maga a fighting style that combines the key elements of Krav Maga with kickboxing wrestling karate and other fighting specialties this equation free conceptual introduction is aimed at martial arts practitioners interested in refining their fighting technique and all fans of the fascinating moment when sports meet science