Three-dimensional dynamic analysis of support leg performance in the Kazami Mawashi Giri Karate kick

Three-dimensional dynamic analysis of martial arts skills, especially the kazami mawashi giri Karate Kick, is important for understanding performance and preventing injuries. However, little research has focused on the movement of the supporting leg and the effect of player weight on it. Objectives: The study aimed to investigate the three-dimensional movement of the supporting leg joint during the performance of the karate players' kick in light and heavy weights, with the identification of dynamic differences related to weight. Research Methodology: The researchers selected elite karate players (12 lightweight and 12 heavyweight players) who performed the maximum kazami mawashi giri kick towards the target. A three-dimensional motion capture system consisting of 10 cameras (240 Hz) and a ground-mounted force platform was used. Results: The results showed that heavyweight players leaned significantly more ankle during the first stage (preparatory), while lightweight players showed a wider range of ankle tilt during the second stage (hitting the target).