2 0 0 0 OA バレーボールのオーバーハンドパスにおける飛距離の違いが上肢および下肢動作に及ぼす影響
- 著者
- 縄田 亮太 石井 泰光 前田 明
- 出版者
- 一般社団法人 日本体育学会
- 雑誌
- 体育学研究 (ISSN:04846710)
- 巻号頁・発行日
- vol.58, no.1, pp.111-122, 2013 (Released:2013-06-08)
- 参考文献数
- 12
- 被引用文献数
- 1 1
The purpose of this study was to identify the effects of different ball distances on the upper and lower limbs for the overhand pass in volleyball. Eleven male college volleyball players participated. The subjects performed the overhand pass toward objects located at three different ball distances (3, 6, and 9 m) on two force platforms, and motion analysis was performed via a motion capture system comprising 12 high-speed video cameras.The following results were obtained: (1) As the ball distance increased, the maximum dorsal flexion angular velocity of the wrist decreased, whereas the length of the pull phase, the vertical peak force on the rear leg, the maximum extension angular velocity of the hip and knee, and the maximum plantar flexion angular velocity of the ankle all increased. Therefore, adjustment of the ball distance for the overhand pass was facilitated by changing the impulse of the ball caused by increasing the intensity of both the rear leg step and the wrist stiffness. (2) In the previous instructional manual, the buffer action for the falling ball during overhand passing was facilitated by flexion of the whole body. However, in this study, the buffer action was facilitated conducted only with the upper limb irrespective of the ball distance. From the viewpoint of the series of movements during overhand passing, the whole body was used in the period from flexion to extension, but the flexion action of the whole body was incorporated into the preparatory phase, and the buffer did not involve the lower limbs after ball contact.This difference between the previous instructional manual and the present findings are attributed to the imprecise definition of movement phases in the manual.
- 著者
- 縄田 亮太 石井 泰光 前田 明
- 出版者
- 日本コーチング学会
- 雑誌
- コーチング学研究 (ISSN:21851646)
- 巻号頁・発行日
- vol.28, no.1, pp.41-52, 2014-11-20 (Released:2019-09-02)
- 参考文献数
- 20
The purpose of this study is to identify the characteristics of the overhand pass in beach volleyball (BVB) by comparing it with the overhand pass in volleyball (VB). The following results were obtained: (1) In the pull phase, wrist dorsiflexion occurred in VB. On the other hand, in BVB, the elbow was bent in addition to the wrist dorsiflexion. This finding suggests that there is a difference in the buffer action of the elbow between VB and BVB. (2) In the push phase, the maximum angular velocities of knee and ankle joints were not during VB but during BVB. This finding suggests a timing difference in lower extension between VB and BVB. And, the largest angular velocity of the upper limbs was seen in the wrist during VB, whereas it was seen in the elbow during BVB. This suggests the segment of the body that accelerates the ball in VB is different from that in BVB. Besides, the timing for extending the upper and lower limbs differs in VB but is comparatively near in BVB. These results suggest that the characteristics of BVB involve the buffer action of the ball with the elbow in addition to that with the wrist, and the acceleration of the ball with the knee and ankle and the simultaneous elbow extension.