論文

査読有り
2013年

優れた投能力を持つ女子児童の投動作の特徴:全国小学生陸上競技交流大会ソフトボール投げ出場者の動作分析から

体育学研究
  • 宮崎, 明世
  • ,
  • 小林, 育斗
  • ,
  • 阿江, 通良

58
1
開始ページ
321
終了ページ
330
記述言語
日本語
掲載種別
研究論文(学術雑誌)
出版者・発行元
Japan Society of Physical Education, Health and Sport Sciences

The purpose of this study was to investigate the characteristics of the overarm throwing motion of skilled elementary schoolgirls, and to obtain suggestions for teaching throwing motion to elementary school pupils. The subjects were the top ten and bottom ten girls who were selected on the basis of their rank in the ball-throwing event at a national athletic meeting for elementary school pupils. The girls were also videotaped by two high-speed cameras for three-dimensional DLT analysis. Three-dimensional coordinate data smoothed by a Butterworth digital lter were used to calculate ball velocity and joint kinematics, and to obtain a standard motion for each group, as reported by Ae et al. (2007).The initial velocity of the balls thrown by the top 10 girls was signicantly greater than that of the bottom 10 girls. There were signicant differences between the two groups in the elbow joint angle, internal/external rotation angle and horizontal adduction/abduction angle of the shoulder joint, and lateral lean angle of the torso at the touchdown, knee joint angle of the step leg at the release, and the range of motion of the knee joint angle of the driving leg. The major characteristics o

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