出版社：Japan Society of Physical Education, Health and Sport Sciences
摘要：The purpose of this study was to clarify the motion factors of a one-hand shot needed to obtain the ball flight distance in female basketball players. The subjects were 18 female basketball players, who performed one-hand shots. Seven distances were set, the 1st shot being taken from 3.225 m. When the ball entered or reached the ring, the shot distance was extended 1 m backward, and when the ball did not reach the ring 3 times continuously, the subjects dropped out of any subsequent attempts. The main results were as follows. As the shot distance increased, the release velocity increased and the release angle decreased significantly; there was no significant increase in release height. As the shot distance increased, the lower limb increased the horizontal velocity and the vertical velocity by extending the hip joint and knee joint from a more flexed posture. As the shot distance increased, the vertical velocity of the upper limb changed from a bimodal pattern that increased before maximum knee flexion (MKF), decreased once after MKF, and increased toward ball release (REL), to a pattern that suppressed the decrease after MKF and gradually increased toward REL. As the shot distance increased, the pattern changed to increase the vertical velocity of the upper limb in synchronization with the increase in the vertical velocity of the lower limb. From these results, it was suggested that one factor of a one-hand shot in female basketball players that could achieve the ball flight distance would be for the lower limb to extend from a more flexed posture, and for an upper limb shot to occur immediately from the front of the chest after catching the ball, with synchronization of these lower and upper limb movements.
关键词：ball release velocity and angle;ボールのリリース速度と角度;flexion of the lower limb;下肢の屈曲;shoulder extension;肩関節の伸展;synchronization lower limb movement and upper limb movement;下肢と上肢の動作の同期;muscle strength;筋力
