Comparison between the Balance of Skilled and Less-Skilled Players during Successful and Failed Front Kick and Turning Side Kick Motions

태권도 품새 우수·비 우수선수 간 앞차고 몸돌아 옆차기의 성·패에 따른 균형성 비교

  • Yoo, Si-Hyun (Department of Physical Education, Graduate School of Korea National Sport University) ;
  • Ryu, Ji-Seon (Department of Health and Exercise Science, College of Lifetime Sport of Korea National Sport University)
  • 류시현 (한국체육대학교 대학원 체육학과) ;
  • 류지선 (한국체육대학교 생활체육대학 운동건강관리학과)
  • Received : 2012.07.31
  • Accepted : 2012.09.26
  • Published : 2012.09.30


The aim of this study is to identify the appropriate movement for maintaining postural balance during Front Kick and Turning Side Kick motions. To do so, ten Taekwondo athletes: five skilled players(S, body mass: $65.0{\pm}5.8kg$, height: $172.3{\pm}3.7cm$, age: $20.0{\pm}1.2yrs$, career: $9.0{\pm}1.9yrs$) and five less-skilled players(LS, body mass: $67.1{\pm}5.5kg$, height: $173.2{\pm}5.1cm$, age: $19.4{\pm}1.7yrs$, career: $9.6{\pm}1.7yrs$) participated in this study. A three-dimensional motion analysis was performed on the participants using eight infrared cameras and two force plate(sampling frequency of 200 Hz and 2000 Hz for S and LS players, respectively). The participants' motions were divided into: a front-kick phase(P1) and a turning-side-kick phase(P2). For P2(p<.05), the range and root mean square(RMS) of the ground reaction torque and the M-L mean velocity of COP were greater for LS than for S; similarly, for P2(p<.05), the M-L range, A-P range, and velocity of the COP were greater for LS than for S. Further, the M-L range and maximum velocity of the COP was greater for failure than for success(p<.05). The femoral biceps muscle for bending the knee joint was significantly stronger in S than in LS(p<.05). It is expected that these results will be useful in developing a training program for improving the balance and stability of Taekwondo poomsae athletes and improve their front-kick and turning-side-kick motions.


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