小学校高学年児童を対象とした走り幅跳びの体育授業における学習成果の検討：より大きな鉛直速度を獲得できる踏切は学習可能か？

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  • Effectiveness of physical education lessons focusing on long jump for fifth graders: Coaching to achieve a higher vertical velocity
  • ショウガッコウ コウガクネン ジドウ オ タイショウ ト シタ ハシリハバトビ ノ タイイク ジュギョウ ニ オケル ガクシュウ セイカ ノ ケントウ : ヨリ オオキナ エンチョク ソクド オ カクトク デキル フミキリ ワ ガクシュウ カノウ カ?

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 The purpose of this study was to determine whether physical education lessons focusing on the long jump for elementary school fifth graders would be able to improve their vertical jump velocity. Twenty-eight elementary school fifth graders were instructed in the long jump over 5 lessons. To gain a higher vertical velocity, participants were instructed to pull their swing legs forward at the moment of touchdown and to lean their trunks backward during the jump. Measurements were taken during the first and fifth lessons. To evaluate the jumping motion, the body's center of gravity and segment angles were obtained using a high-speed video camera from a side angle.<br>  The main results were as follows:<br>  1) Since vertical velocity at takeoff and jumping distance were both significantly increased, elementary school fifth graders were able to learn to gain a higher vertical velocity. However, the increase in jumping distance was not due to the increase in vertical velocity but rather a decrease in the distance lost during landing.<br>  2) Although post-measurement showed that the swing legs at touchdown were pulled more forward than at pre-measurement, the change in that motion did not contribute to the increased vertical velocity.<br>  3) At post-measurement, the trunk was inclined more backward than at pre-measurement. Therefore, forward rotation of the body was suppressed at takeoff, which increased the vertical velocity. In addition, suppressing the forward rotation of the body strongly contributed to the decrease in distance lost during landing.<br>

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  • 体育学研究

    体育学研究 62 (2), 647-663, 2017

    一般社団法人 日本体育・スポーツ・健康学会

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