This study was conducted to clarify the group tactical structures of “pick and roll” in basketball by having players who excel at the tactic share their knowledge verbally. It was anticipated that such sharing would help provide information useful for improvement of individual tactical skills in situations where multiple players face off on the court. To better understand this tactic, 8 female basketball players who compete at international level were interviewed regarding pick play, and their narratives were analyzed qualitatively. Our findings were as follows.
　In pick and roll, there is a “pause” between the offense and defense players before the screen is set, and a struggle for the angle at which the screen is set between the uninvolved players. Moreover, a conflict over whether or not to “bring it to 2-on-2” was interpreted as occurring during the screen set, while the struggle over whether to “reasonably advance the numerical advantage” was interpreted as occurring after the screen set.
　Top players make sense of 1-on-1 situations visually, but when they have to face 2 opponents, they use visual, auditory, and tactile sense to grasp the situation.
　Top players were also shown to have both the practical ability to directly implement their procedural knowledge, and the ability to fine-tune their play in terms of space and timing to better apply their skills to the game.

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    This study aimed to convert the practical intelligence of ball handler who play an integral role in “pick play” into useful knowledge for the field of practice in order to improve individual tactical skills in situations where multiple players are confronted. To achieve this goal, we conducted an interview study on pick plays with one male basketball player who excelled at the international level, and qualitatively analyzed his narrative. The following results were obtained.
1) In the preparation phase of a pick play, he analyzed the situation according to the gap and space created by his own initiative, and formulated a behavioral strategy that could resolve the situation regardless of the opponent's response. They can be viewed as tactical thoughts that constantly lead the opponent into unfavorable scenarios by updating the opponent's assessment during the game.
2) Once he knew the reaction of the defender he was facing, he played with selective attention to the next screener defender or situation confronting him. In doing so, he read the semantic structure of the opponent's defensive actions as signs, which helped him formulate a rational method of attack.
3) He was able to understand the characteristics of his teammate's screener and the matchup with the opposing defender facing the screener in a two-on-two game, and he played to exploit the differences in height, size, speed, and spatial weakness.
4) By using a variety of dribbling variations, the player could prevent the opponent from easily predicting his response to the play, and apply the tactic even in other, similar situations.

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筆者は，2006年10月から2008年3月までの約1年半の間，アメリカ・シカゴのイリノイ大学シカゴ校薬理学科にて，特別訪問研究員として研究活動を行なった．ここでは，Dr. Masuko Ushio-Fukai 研究室おける血管新生と活性酸素依存的シグナル伝達調節に関する研究と，シカゴでの留学生活を紹介したい．

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