| Summary: | 碩士 === 國立臺灣師範大學 === 體育學系 === 98 === Osoto-gari was one of most used techniques by different levels of judoist to win the game. Kashiwazaki Katsuhiko (2010) thought to use osoto-gari of 45 degrees Hikete kuzushi technique can reduce to be thrown by rival to use osoto-gari of 90 degrees Hikete kuzushi technique will add to be thrown by rival.
The aim of this study was to compare the difference of 45 degrees Hikete kuzushi technique and traditional 90 degrees Hikete kuzushi technique on the kinematics and kinetics. The 8 judoists participated in this study. Using 10 Vicon Motion System (MX13, VIcon,UK) (200 Hz) and 1 Kistler 9281 (1000Hz) force platform. Each participant collected 8 trials in this study, and use 3 better trials analyze. Used t-test (p≦0.05) analysis in the kinematics and kinetics between the 45 degrees Hikete kuzushi and 90 degrees Hikete kuzushi groups.
The results of this study were:
1.Had different Hikete Kuzushi 45 degrees had faster time in Tsukuri time and Movement time.
2.Had different in Hikete Kuzushi 45 degrees had center of gravity (COG) is low in Tsukuri time.
3.Had different Hikete Kuzushi 45 degrees had faster the max degree velocity in hip, knee, and ankle when judoist attacked.It indicated attacked leg to impact rival will get more power to throw the rival.
4.no different was found on maxinun ground reaction force (MGRF) better two technique in the kake time.
According to result , the movement of 45 degrees is fast than 90 degrees. We suggest coach and athlete to train the skill is 45 degrees style.
|
|---|
