Abstract
In the present study, impact force measurements and biomechanical analysis were carried out during the KERI (kicking) of SHORINJI-KEMPO. The impact force and kinetic parameters were measured by using the proposed impact force measuring device with strain gages, accelerometer and three-dimensional rate gyro sensors. Furthermore, the force of pivot leg was measured by a 6 degree-of-freedom force sensor, and the movements of KERI-ASHI (moving leg during KERI motion) were measured by using accelerometer. The trained SHORTNJI-KEMPO players showed the larger impact force in contrast to that for un-trained players. The impact force was affected by the pivot leg movements. It is important to increase the impact force that the player supports the body with the toe side and the inside of the pivot leg and the body is stabilized by the large reaction force of pivot foot when the player starts the KERI motion.
