THE DIFFERENT HEIGHTS OF TARGET IN MEN-ATTACK MOTION OF KENDO EXERT TO MAAI AND FORCE CURVE PATTERN OF LEFT FOOT

JIKIHARA Kan, ICHIKAWA Masumi, YAMAGAMI Shin-ichi, MIYAMOTO Kensaku, ARAKAWA Noriko

doi:10.11214/budo1968.31.1_38

The change of the biomechanical properties in Men-attack motion induced by different heights of target was studied in 5 adult Kendo men. The three heights of target were set up, the same height (±0cm)as the stature of each subject,20cm higher target (+20cm) and 20cm lower target (-20cm) than the stature of each subject. The photographical data in Men-strike phase and force curve pattern in take-off phase during Men-attack motion were analyzed by 16mm cine-camera and force platform, respectively. The difference of the biomechanical properties in Men-attack motion were compared between the conditions of ±0, +20 and-20cm. (1) The higher the height of target elevated, the lower the Maai distance changed. (2) The higher the height of target elevated, the larger the maximum values of the force curve (Fz and Fy)estimated from the take-off motion started from the regulated Maai distance changed. In the case of take-off motion started from the adjusted Maai distance, however, there was no difference of maximum values of the force curve between the three conditions. (3) There were no difference of the angle made toe, body gravity and horizontal line and the angle made upper part of the body and horizontal line in Men-strike phase. It was the angle made left arm and trunk in Men-strike phase that changed larger according as the height of target elevated.

THE DIFFERENT HEIGHTS OF TARGET IN MEN-ATTACK MOTION OF KENDO EXERT TO MAAI AND FORCE CURVE PATTERN OF LEFT FOOT

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