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

Abstract

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 ± 5.8 kg, height: 172.3 ± 3.7 cm, age: 20.0 ± 1.2 yrs, career: 9.0 ± 1.9 yrs) and five less-skilled players(LS, body mass: 67.1 ± 5.5 kg, height: 173.2 ± 5.1 cm, age: 19.4 ± 1.7 yrs, career: 9.6 ± 1.7 yrs) 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