Influence of the torque generating capacity of the lower extremity muscles on the running and jump performance in primary and junior high school boys

• Yoshimoto Takaya

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Takai Yohei

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Fujita Eiji

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Fukunaga Yuko

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Kintaka Hirofumi

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Nishizono Hidetsugu

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Kanehisa Hiroaki

  <i>National Institute of Fitness and Sports in Kanoya</i>

• Yamamoto Masayoshi

  <i>National Institute of Fitness and Sports in Kanoya</i>

Bibliographic Information

Other Title

• 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
• ショウ ・ チュウガクセイ ダンシ ノ カシキングン ノ キンリョウ オヨビ カンセツ トルク ガ ソウ ・ チョウヤク ノウリョク ニ アタエル エイキョウ

Abstract

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)² /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.

Journal

• Japanese Journal of Physical Fitness and Sports Medicine

  Japanese Journal of Physical Fitness and Sports Medicine 61 (1), 79-88, 2012

  The Japanese Society of Physical Fitness and Sports Medicine

Keywords

• growth period
• running velocity
• jump height

Details

• CRID: 1390282679897312000
• NII Article ID: 10030139939
• NII Book ID: AN00137986
• DOI: 10.7600/jspfsm.61.79
• ISSN: 18814751
• ISSN: 0039906X
• NDL BIB ID: 023513585
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023513585
• Web Site: https://www.jstage.jst.go.jp/article/jspfsm/61/1/61_1_79/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed