Comparative Analysis of Quadriceps Muscle Activity in the Four Variations of Judan Mai-Mawashi-Geri Technique Among Elite Male Karatekas
Poster Presentation
Paper ID : 1383-SSRC
Authors
1دانشگاه فنی و حرفه ای استان اذربایجان شرقی
2عضو هیات علمی دانشگاه خوارزمی
3Associate Professor, Department of Bioelectric, Faculty of Biomedical Engineering, Sahand University of Technology, Tabriz, Iran
Abstract
Background: Coaches and kumite practitioners are keen on understanding the role of the quadriceps muscle in the velocity of execution for the four common variations of the Judan Mai-Mawashi-Geri technique. This technique is widely employed in karate and kumite (combat) competitions.
Objective: This study aims to compare the electrical activity of the quadriceps muscles during the performance of the Judan Mai-Mawashi-Geri technique by elite male karatekas, emphasizing the identification of the optimal pattern.
Methodology: The analysis focused on the best performance, utilizing electromyography data gathered three times from the quadriceps muscle of 18 kumite practitioners executing four variations of the Judan Mai-Mawashi-Geri technique. The methods included:(Guard, 90-degree thigh flexion (knee lift), knee opening, moment of hitting the target, back to guard. Guard, 45-degree rotation of the thigh, knee opening, moment of hitting the target, back to guard.Guard, 90-degree rotation of the thigh, knee opening, moment of hitting the target, back to guard. Guard, 120-degree thigh flexion, knee opening, moment of hitting the target, and back to guard). The recorded electromyography signals from the Rectus femoris, vastus medialis, and vastus lateralis muscles were analyzed using Chart software. A signal frequency of 1000 Hz was filtered between a high-pass frequency of 10 Hz and a low-pass frequency of 500 Hz, employing a system to determine the appropriate domain. Statistical analysis involved one-way analysis of variance and the Bonferroni post-hoc test (p≤0.05) using SPSS software due to the normal distribution of data.
Results: The research findings revealed a significant difference in the electrical activity of the Rectus femoris, vastus medialis, and vastus lateralis muscles among the four variations of the Judan Mai-Mawashi-Geri technique (p≤0.05). Additionally, the Rectus femoris muscle exhibited higher electrical activity, particularly in the first execution method compared to the other three methods.
Conclusion: Based on the study results, it is recommended that coaches and kumite practitioners opt for the first execution method, initiating with a 90-degree thigh flexion (knee lift), for achieving a faster performance of the Judan Mai-Mawashi-Geri technique.
Objective: This study aims to compare the electrical activity of the quadriceps muscles during the performance of the Judan Mai-Mawashi-Geri technique by elite male karatekas, emphasizing the identification of the optimal pattern.
Methodology: The analysis focused on the best performance, utilizing electromyography data gathered three times from the quadriceps muscle of 18 kumite practitioners executing four variations of the Judan Mai-Mawashi-Geri technique. The methods included:(Guard, 90-degree thigh flexion (knee lift), knee opening, moment of hitting the target, back to guard. Guard, 45-degree rotation of the thigh, knee opening, moment of hitting the target, back to guard.Guard, 90-degree rotation of the thigh, knee opening, moment of hitting the target, back to guard. Guard, 120-degree thigh flexion, knee opening, moment of hitting the target, and back to guard). The recorded electromyography signals from the Rectus femoris, vastus medialis, and vastus lateralis muscles were analyzed using Chart software. A signal frequency of 1000 Hz was filtered between a high-pass frequency of 10 Hz and a low-pass frequency of 500 Hz, employing a system to determine the appropriate domain. Statistical analysis involved one-way analysis of variance and the Bonferroni post-hoc test (p≤0.05) using SPSS software due to the normal distribution of data.
Results: The research findings revealed a significant difference in the electrical activity of the Rectus femoris, vastus medialis, and vastus lateralis muscles among the four variations of the Judan Mai-Mawashi-Geri technique (p≤0.05). Additionally, the Rectus femoris muscle exhibited higher electrical activity, particularly in the first execution method compared to the other three methods.
Conclusion: Based on the study results, it is recommended that coaches and kumite practitioners opt for the first execution method, initiating with a 90-degree thigh flexion (knee lift), for achieving a faster performance of the Judan Mai-Mawashi-Geri technique.
Keywords