상지부하가 태권도 격파선수들의 회전발차기에 미치는 영향

Abstract

This research analyzed kinematic factors and conducted the effect of the upper limb weight load on rotational kicks (Dolgae kick, one-legged Dolgae kick, 720-degree spin kick) of Taekwondo strikers. A total of five members of the Taekwondo Demonstration Team attending C University in G Metropolitan City were selected as subjects of the study. For motion analysis, five three-dimensional video analysis cameras were used, and the weight load was carried out by wearing 2KG sandbags. The experimental method recommended rotating kicks when removing the weight of the upper limb and loading the weight, and not to exceed 5 times considering the fatigability of the experiment subject. The kinematic factors of the upper limb joints (shoulder, pelvis, arm) were analyzed through experiments. The statistical processing was analyzed by setting the significance level to P<.05 through the SPSS 27.0 (SPSS Inc. chicgo, IL, USA) program. The following conclusions were made by analyzing the kinematic factors that appear when performing vertical axis rotation kicks due to upper limb weight loads.

First, the angle of Dolgea kick due to the load of upper limb weight appeared high as a statistically significant difference.

Second, the angle of one-legged rush kick due to the weight load of the upper limb appeared high as a statistically significant difference.

Third, the angle of a 720-degree turn kick due to the weight load of the upper limb appeared high as a statistically significant difference.

Fourth, the angular velocity of the right shoulder and right pelvis of the thrust kick, one-legged thrust kick, and 720-degree rotation kick under weight load on the upper limb was significantly higher, but the angular velocity of the right arm was statistically significantly lower.