Yes the drill is known to practitioners of Filipino Martial Arts (FMA) as Hubud Hubud; their are numberous parts to it. It should be practiced against strikes coming from various angles, with empty hands, sticks, or training knives and on both sides. Hubud (meaning to tie) and Lubud (meaning to untie) are nothing more than a predetermined pattern of movement, the purpose of which is to learn positioning, angles, and tactile sensitivity. Drills are also great for increasing hand speed and learning spontaneous reaction. We don't fight with a drill but we may use a little piece of a drill in a fight, or a concept from a drill in a fight. This drill sequence is sometimes called Hubud along with others similiar to it. The focus of this particular drill is inside line checking followed by high line passing. It goes back and forth from the one who "feeds" or initiates the drill to the one who receives. Check this link out and go down to the empty hands stuff.
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