Zitat von Webb, 2016: Analysis of the Wing Tsun Punching Methods. In: Michael A. DeMarco (Editor): Wing Chun. Writings for Advanced Practicioners, p. 15-17
Perhaps the most well-known fighting technique of wing tsun gongfu is the straight-line thrusting punch (yat-gee-chung-kuen) [...]. This short, jolting strike begins by holding the fist vertically and placing it at the center of the chest. As the punch is thrusted outward, it travels forward along the centerline until the arm reaches full extension.
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The power of this punch relies on three key factors: first, the fist must travel as straight as possible towards its intended target; second, the fist should remain closed but not tightly-clenched, which ensured that the whole arm is loose and relaxed; third, the punch should be thrust out to full extension as quickly as possible. Rapid and full contraction of the triceps generates the acceleration needed to propel the fist outward with explosive power [...]. In any case, to generate powerful straight-line punch, one must develop powerful fast twitch triceps, strong latissimus dorsi muscles, and most importantly tendon strength in the wrist and elbow joints. Correct muscular development and punching technique are evidenced by a deep, audible snapping sound when a punch is thrown in the air [...]. This whiplash effect occurs when the elbow joint locks out and the shoulder recoils.
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Along with conditioning the muscles and tendons of the arm itself, development of the fist is of equal importance. In contrast to the typical reverse punch which strikes with the top two knuckles, the wing tsun straight-line thrusting punch uses the bottom three knuckles and the shins of those fingers as well [...]. Structurally, the wing tsun straight-line thrusting punch provides optimum stability along the line of power.
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In both real-world application and in resistance training against a target, the elbow remains bent until the fist makes contact. At that moment, the elbow will fully extend and delivers its power.
