小・中学生男子の下肢筋群の筋量および関節トルクが走・跳躍能力に与える影響 Influence of the torque generating capacity of the lower extremity muscles on the running and jump performance in primary and junior high school boys

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This study aimed to determine the relationships between the torque generating capacity of the lower extremity muscles and either running or jump performance in primary and junior high school boys. A total of 102 primary and junior high school boys participated in this study. Muscle thicknesses (MTs) of the knee extensors and plantar flexors were determined using ultrasonography. Muscle volumes (MVs) of the knee extensors and plantar flexors were estimated using MTs and limb lengths. The isometric joint torques (TQs) for knee extensors and ankle plantar flexors were measured using myometer. MV and TQ were divided by body mass (MV/BM and TQ/BM, respectively). Running velocity was measured using a non-motorized treadmill. The counter movement jump (CMJ) and squat jump (SJ) were performed on a matswitch system. The flight time was measured and used to calculate the heights of CMJ and SJ using the following equation; height (cm) = g × (flight time)<sup>2</sup> /8/10. As the result of multiple regression analysis, age, MV/BM and TQ/BM were selected as predictors of running velocity in the primary school boys, whereas TQ and lean body mass in junior high school boys. In the primary school boys, TQ/BM and body fat mass was selected as significant contributors for SJ and CMJ performances, whereas, in the junior high school boys, TQ and the percent of body fat for SJ performance and MV/BM and TQ for CMJ performance. Thus, the present results indicate that the relationships between torque generating capacity of the lower extremity muscles and either running or jump performance differ between primary and junior high school boys. It may be assumed that, for running and jump performances, muscle mass and strength become determinant factors in junior high school boys, whereas their values relative to body mass in primary school boys.

収録刊行物

  • 体力科學

    体力科學 61(1), 79-88, 2012-02-01

    The Japanese Society of Physical Fitness and Sports Medicine

参考文献:  41件中 1-41件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10030139939
  • NII書誌ID(NCID)
    AN00137986
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0039906X
  • NDL 記事登録ID
    023513585
  • NDL 請求記号
    Z7-301
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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