Biomechanical of The Mawashi-Geri Kick In Karate Athletes of The Inkanas Kertosono Dojo, In Nganjuk Regency

Abstrak

This study aims to analyze the execution of the Mawashi-Geri kicking technique performed by athletes at Dojo Inkanas Kertosono using biomechanical principles and standards established by the World Karate Federation (WKF). The research employed a descriptive biomechanical design with a qualitative analytical approach, focusing on video-based motion analysis to evaluate movement quality and technical accuracy. Data were collected through video recordings captured from two camera angles to ensure comprehensive observation of body alignment, joint motion, and kicking trajectory. The recorded movements were analyzed using Kinovea software to measure key biomechanical angles, including the leg-opening angle (α1), trunk inclination angle (α2), and supporting-leg rotation angle (α3). In addition, movement evaluations were triangulated with assessments provided by two experts, consisting of a DAN 2 karate technique specialist and a nationally licensed referee, to enhance analytical validity. The findings indicate that the measured angles did not consistently fall within the ideal biomechanical range, with α1 ranging from 107° to 133°, α2 from 125° to 151°, and α3 from 119° to 146°. These deviations reflect deficiencies in pelvic rotation, postural stability, and intersegmental coordination, which subsequently reduce kicking effectiveness. Furthermore, weaknesses were observed during the recoil phase, where delayed or unstable leg retraction negatively affected balance control and increased vulnerability to counterattacks. In conclusion, although the athletes have mastered the fundamental structure of the Mawashi-Geri technique, substantial technical refinement is still required. Improvements should focus on enhancing pelvic rotation efficiency, body stability, core muscle strength, hip flexibility, and neuromuscular coordination through training programs grounded in biomechanical principles. The findings of this study provide practical insights for coaches in designing more targeted and scientifically informed training interventions to optimize Mawashi-Geri performance in developing karate athletes.