The O.P.F. System incorporates, among other techniques, principles and concepts of Dumog, Filipino version of Grappling, which combined with JKD combat system offers a comprehensive and effective, targeting special forces of order and also adapted for civilian use. In this new DVD version focused on the "civilian" Dumog, we studied the techniques that allow nullify the strength of the opponent, acting with fists, elbows, head, etc.. On vital anatomical points of the nervous system. Once again, Oliva delves into the concepts and applications of JKD, developing new ways that allow us to acquire expertise extremely effective and fatal for the adversary.
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