Motor symmetry between the dominant and non-dominant legs for some physical and biomechanical variables for karate and taekwondo players

Document Type : Original Article

Authors

1 Mansoura Physical Education

2 Mansoura University, Faculty of Physical Education

Abstract

The research aims to know the Motor symmetry between the dominant leg and the non-dominant leg for some physical and biome-chanical variables for karate and taekwondo players.

The descriptive approach was used through biomechanical kinetic analysis, and the research sample consisted of 20 players, including (10) karate players, and (10) taekwondo players who perform the skills under study with perfection. players are under (17 years).

Imaging was done with a high-frequency camera of 240 frames per second, and the analysis was done using the Tracer program. The best attempt was chosen to analyze it and extract the biomechanical variables for the center of gravity of the kicking man. Then the data was arranged and classified using EXCEL 365program. The data was ana-lyzed statistically using the SPSS vr25 program, and the following treatments were used (average - Standard deviation - Kalimanrov and Smirnov - Significance of differences test (Ttest - ANOVA – LSD).

The most important conclusions were that the highest difference in the motor symmetry index between the dominant and non-dominant leg was in the variable of biomechanical effectiveness of the side kick for karate and taekwondo players, and there were no statistically signif-icant differences for the same variable in the circular kick.

The most important recommendations were the use of exercises to improve the motor coordination index of the non-dominant foot, and the application of the study to other sports that use both legs in per-formance.

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