競泳キックスタートにおけるバックプレート位置の違いが5m/10m通過時間に与える影響

J-GLOBAL ID : 202201012804701108

J-GLOBAL ID : 202301019486094800

J-GLOBAL ID : 200901085265547080

J-GLOBAL ID : 202101004237845144

The purpose of this study was to clarify the effects in the lower hip angle in different back plate positions has on the times of the 5 m and 10 m of a swim start. Seven male Japanese swimmers including national level athletes were selected as subjects. Each swimmer participated in three back plate positions；each dive using a different back plate position and recordings of time from the start to 15m were made. 10 motion captured systems were used to capture kinematics data, and two video cameras measured the time at each passing point. The results of this study showed that the 10m time was significantly shorter in the order of Front, Prefer, and Back. There was no difference in the take-off horizontal velocity, but the 10m time resulted to be shorter when the take-off angle was higher. The farther the distance between the back plate, the larger rear foot hip angle at the kick start stance of the start, and the earlier the start of extension of each joint angle. It is considered that this makes it easier to raise the upper body, which enables horizontal movement and increases the speed of the 10m time.

1520860078898196096

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