The biomechanical properties of rotation in the motor system Gogoshi Hodai as a basis for developing specific exercises for karate players * Dr.Abdulaziz Al-Sayed Mohamad Al-Sayed Rifai ** Dr.Ahmed Ayman Abdelfatah Elbasty This research aims to determine "the biomechanical characteristics of rotation in the motor system Jujushihodai as a basis for developing specific exercises for karate players" Procedures: The researchers used the descriptive approach using mechanical analysis based on the method of video imaging and motor analysis using the motor analysis program "skill spector 3d" using (3) Camera frequency 100 frames / sec. The study sample is an international karate player and the results: identifying the biomechanical characteristics that most contributed during the moment of starting the rotation in the movement sentence Gogoshihosho and identifying the biomechanical characteristics that most contributed during the moment the left foot touched the ground in the movement sentence Gogoshihosho and identifying the biomechanical characteristics that most contributed during the moment of touching the left foot For Earth in the kinetic sentence Gogoshihosho Keywords: Rotation in the kinematic kata Gogoshihodai*: It means the transition from the nikushi-dachi mode to the kiba-dachi mode to perform the defense skill (Morote Kaishu Gedan Uke Kiba Dachi).