跆拳道不同品牌電子護具踢擊得分效益之比較

Comparison of Scoring Efficiency among Different Taekwondo E-trunk protectors

目的：以跆拳道比賽中使用率及得分率最高的旋踢及側踢，比較Daedo與KPNP兩種電子護具的得分率效益。方法：招募12名健康大專甲組跆拳道運動員，以平衡次序法將兩款護具穿置在人形踢靶，並依參與者高度調整最佳踢擊擺設，請參與者以慣用腳執行旋踢或側踢，以最大力量踢擊護具正面的上、中、下端部位各5下，部位間休息2分鐘，每種護具有30下踢擊表現，兩護具間休息5分鐘，以避免疲勞，踢擊後記錄攻擊得分磅數，並依參與者量級判定是否有效得分，將不同狀況下踢擊次數中的有效得分換算成得分效益，以卡分檢定考驗不同護具、踢擊部位、踢擊動作的得分效益。結果： KPNP的得分效益(93%)顯著高於Daedo牌(69%)；兩款護具正面三等份部位得分效益有顯著性差異，依序為中端(92%)、下端(82%)、上端(68%)；在KPNP護具上，旋踢得分效益顯著高於側踢。結論：KPNP護具較Daedo護具容易取分，且踢擊護具正面中段的得分效益最高。

 

The purpose of this study is to investigate the difference of scoring rate effectiveness between the Daedo and KPNP protector scoring system (PSS) by roundhouse kick (RK) or side kick (SK) which are mostly usage and scoring rate in Taekwondo competition. Method: 12 health college elite taekwondo athletes were recruited. Two E-Trunk Protectors were placed on the adjustable Humanoid target with balance designs, and the best protector set was regulated by the height of athletes. Participants were asked to executed RK or SK with maximal effort on the three front parts of the chest protector, and each part of upper, middle and lower location was kicked 5 times with 2-min rest. 30 kicks were performed on each protector and there was 5-min resting between protectors for avoiding fatigue. The kick force value and valid point determined by weight level threshold were recorded after each kick. The valid points divided total kicks was converted into Scoring efficiency under different testing conditions. The Chi-Squared test of independence was compared the scoring efficiency among different protectors, kicking location, and kicks. Result: valid points from KPNP PSS (93%) is significantly higher than the Daedo PSS (69%). The points on three parts on front protector are significantly different, and the better scoring efficiency are middle (92%), bottom(82%)and Upper(68%) respectively. Only KNPN protector, the scoring rate effectiveness of RK is higher than SK with significance. Conclusion: truly easier to get valid point from KNPN chest protector, and the higher scoring efficiency on middle part of two-kind front protectors.