Abstract:
Purpose : To compare the kinematics variables in high kick of Muay Thai amateur boxers Method : Ten Muay Thai amateur featherweight boxers who attended the 42nd Thailand National Games, Suphanburi Gamesand weighted between 54 kg and not more than 57 kg were recruited in this study. The participants were divided into two groups, is i.e., boxers who did not qualify the first round and boxers who qualified the first round in Suphanbuei Games. After data collection, biomechanical variables regarding high kick were reported in terms of an average and a standard deviation of the highest speeds and the highest acceleration in ankle, knee and hip joints in high kick. t-test were used to compare the highest speeds and the highest Acceleration between the two groups. The statistical significance was set at .05 Results : The highest speed in ankle, knee and hip joints in boxers who didnt qualify the first round were 10.48 ± 2.78, 7.72±1.36 and 2.76±0.73 m/s, respectively, while the highest speeds in ankle, knee and hip joints in boxer who qualified the first round were 9.45±3.14, 6.59±1.24 and 2.27±0.83 m/s . The highest Acceleration in ankle, knee and hip joints in boxers who didnt qualify the first round were 206.96 ± 130.63, 125.91 ± 65.14 and 66.92±61.97 m/s², respectively, while the highest Acceleration in ankle, knee and hip joints in boxer who qualified the first round were 292.79 ± 246.72, 97.55 ± 67.61 and 50.96±28.30 m/s². Conclusion : There was no statistical difference in the highest speed and highest Acceleration in all three joints between both groups at .05 level. The results indicated that the speeds in ankle, knee and hip joints of Muay Thai featherweight amateur boxers who attended the 42 nd Thailand National Games, Suphanburi Games were not statistically different.