多くのスポーツアスリートは身長が高いという事実はあるが，それは高身長という要素がスポーツに適しているのであって，スポーツ選手だから高身長なのではない．このようなスポーツ選手に対する認識のズレがスポーツタレント発掘に対する誤解として存在しているのではないだろうか．そこで，本研究は，このような誤解を精査する意味から，高身長と身体能力ついて言及し，この結論から派生する高身長と高収入，高学歴の議論から裕福な環境におけることがスポーツアスリートの成功へと繋がる経緯を論議する．そして，高身長のトラッキング現象を検証することで，スポーツタレントの要素を発掘するには，運動能力の優秀さに加えて高身長を独立的に追加することが重要であり，ジュニア期において運動能力の優れた者の中から高身長を選択するシステムの確立を提唱するものである．

    The purpose of this study was to investigate technical factors in floater shot, which is a new and an advanced basketball skill, by comparison between an expert (n＝1) and a novice (n＝1) in Japanese basketball player. Each subject had executed floater shots against a defense until 10 successful floater shots were completed. Nine trials of running jump on left foot, the most emerging pattern from the subjects, were assessed by a three-dimensional motion analysis system. By comparison between the expert and the novice player, the expert player demonstrated 1) significantly longer time catching the ball to jumping, 2) significantly shorter travel distance of center of gravity in a phase between taking off the ground and landing 3) a posture that expert playersʼ shoulder was consistently parallel on the hip in the horizontal plane, and 4) higher reproducibility in the upper body kinematics during a phase between taking off the ground and releasing the ball.

    The purpose of this study was to investigate the skilled process related to the qualitative change by the movement form of dribble shoot by non-dominant hand in 23 female subjects who were from the third grade to the sixth grade in an elementary school. We also aimed to obtain some suggestion of adaptable instruction of the shooting skill.

    The main results may be summarized as follows:

   1) A certain close relationship was found between the number of experienced month and the score of form. In addition, it was found that the starting time of instruction of dribble shoot by non-dominant hand is effective to start the same time of instruction of dominant hand.

   2) The difference between the skilled process of dribble shoot by dominant and non-dominant hand was appeared by the keep phase. According the develpomental tendency of qualitative change in dribble shoot movement by non-dominant hand was depended on the keep phase.

   3) The skilled process of dribble shoot by non-dominant hand was found to develop step by step through the 6 stages from the state of beginners to that of the skilled performers and to appear the one-handed shoot if the performer was enabled to step the stride pattern from non-dominant foot to dominant foot in the keep phase.

   4) When instructing the dribble shoot by non-dominant hand， it should be instructed through the following processes: to step the stride pattern from non-dominant foot to dominant foot, then to lift the opposite foot of takeoff foot and carry the ball up with one hand, finally to release the ball softly and jump still higher.

    Focusing on the pick play screener which is often used in basketball tournaments and tactics, this study specifically aims at claritying the motion of the screenner in the preparation phase.
    To achieve the purpose, statistical analysis was conducted for teams that advanced to the semi-final of World Cup hosted by the International Basketball Federation (FIBA) in 2006, 2010 and 2014. Statistical analysis was conducted for 8 games (4 games in the quarterfinals, 2 games in the semi-finals, 2 games in the final and 3rd-place match) in each tournament, therefore a total number of 24 games were analyzed.
    The following result: The ratio of pick plays used during games increased as each tournament was held. It also turns out that the simple preparation phase of the motion such as run or walk before screen the user instead of screening or faking is effective.

　In recent years, the “running movement” in basketball has been taught from a technical standpoint in some instances. However, in basketball instruction manuals, terms such as “skill” and “technique” are used to describe rational body movements like dribbling, passing, and shooting with the ball, but not running movements. In the field of sports kinetics, the running movement in ball games has traditionally been viewed as an “adjusting running form,” but this has not been developed as a technical theory and case studies focusing on athletes’ kinesthetic perceptions. This study seeks to develop a technical theory for running movements in basketball by examining this specific skill nature in basketball performance, technical categories of morphology in basketball games, and the direction and progression of skill training from the perspective of the kinetic horizon structures. Results reveal that the skillful nature of the running was captured by the dual meanings and values of “performative technique” accompanied by tactical intent and “mediative movement” aimed at the demonstration of fundamental motor skills. Morphologies were broadly categorized into eight distinct forms, organized under two primary classifications. Specifically, it were classified into two categories: running movements with and without ball possession. Moreover, each category was further subdivided into four morphologies (sprint form, combination form of sprint and change-of-direction, turn form, and jogging form). In technical training, it was made clear that attention must be paid to the player’s kinetic horizon structure , to the reversibility of intentionality, and to posture and coordination of limbs as the knack. Additionally, this study suggests that accumulating case studies focused on the kinesthetic aspects of running skills during training could enhance the efficiency of skill coaching.