Defining the U-Shape Block
The U-Shape Block (Digutja Makgi) is a highly specific defensive technique in Taekwon-Do. The sole purpose of this technique is to block an attack delivered by either a pole or a bayonet. This block is categorized as a low-level technique, generally found in advanced patterns. The U-Shape Block utilizes the reverse knife-hand as the blocking tool. This block is distinct from the U-Shape Grasp (Digutja Japgi), which is a variation designed to secure and twist the attacking weapon immediately after the block. The principle of the U-Shape Grasp is, however, the same as that of the U-Shape Block.
Execution Principles and Stance Selection
For effective execution, both hands must be maintained in a vertical line at the moment the block is delivered. It is crucial that the lower elbow must be flush with the hip upon impact. Simultaneously, the body should be leaned slightly toward the target. If the upper hand fails to form a vertical line with the lower one, the execution is incorrect, and the head is attacked. The stances mainly used for the U-Shape Block are the fixed stance (Gojung Sogi) and the L-stance (Niunja Sogi). It can also occasionally be performed from a walking, rear foot, or X-stance. The U-Shape Grasp is also primarily executed from fixed and L-stances, though occasionally a rear foot stance is employed.
Training Procedures and Common Errors
When training the U-Shape Block from a fixed stance, the procedure involves moving the foot forward to form the fixed stance while executing the block. A crucial error in the execution of the U-Shape Block is the lower elbow failing to be flush with the hip. This incorrect position not only makes the block ineffective for grasping in variations like the U-Shape Grasp, but it also leaves the vital spot open to an attack. The technique is incorporated into complex sequences in training, such as the forward stepping block, where it is often followed by a jump and spin, landing in an L-stance while executing a guarding block.
Related Techniques and Tactical Use
The X-Fist Rising Block is considered particularly powerful against a downward strike delivered with a pole or hand technique. However, the U-Shape Block is specifically designed for the linear attack of a bayonet or pole. In the U-Shape Grasp variation, the top hand’s palm must face upward at the moment of the block. After performing a U-Shape Block from a fixed stance, training drills may transition to a sweeping kick followed by the U-Shape Block itself. This demonstrates the block's utility in stabilizing the practitioner for subsequent offensive or defensive maneuvers.