Volume 19, Issue 22 (12-2021)                   RSMT 2021, 19(22): 55-66 | Back to browse issues page

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Ghiamirad A, Esmkhani F, Hariri S. Kimematic Analysis of Giakozuki Judan and Chudan Punches in Professional and Semi-Professional Karate Men. RSMT 2021; 19 (22) :55-66
URL: http://jsmt.khu.ac.ir/article-1-446-en.html
Tabriz University , amirghiami@yahoo.com
Abstract:   (1535 Views)
The aim of this study was to investigate the kinematic characteristics of the two skills of Judan and Chudan Giakozuki Karate, professional and semi-professional male men. Methods: 10 Professional and 10 semi¬-professional amateur male Karate athlethes participated in this study and performed the techniques. The ground reaction force during the impact, which was an indirect parameter to calculate the impact power, was measured using a force plate with a frequency of 250 Hz. The ADXL320 accelerometer was also used to calculate the hand transfer acceleration. The motion data were recorded using Phase Space real time optical tracking system with 8 high speed cameras at 480 fps. Then the kinematic parameters associated with each fist were modeled and quantified by a three-dimensional imaging system.Paired t-test and independent t-test were used to analyze the research data.The test results in the parameters of wrist, elbow, shoulder movement in Judan and Chuadan Gyakozuki skills, ground reaction force, peak speed of elbow and shoulder in Chuan Gyakozuki skill, peak wrist velocity in Judan Gyakozuki skill in semi-professional karate and professional showed a significant difference. Fainaly, the results showed that the type of impact and the level of experience of karatekas were the main factors in determining the size of the displacement parameters and peak velocity, which are considered an important factor in success in competitions and lead to better scores in competitions.
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Type of Study: Applicable | Subject: sport biomechanic
Received: 2020/09/3 | Accepted: 2021/07/21 | Published: 2021/12/22

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