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Lower limbs and trunk muscularity and its relation to hitting motion mechanics

Research Project

Project/Area Number 18K17845
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionYokohama College of Commerce (2020-2021)
National Agency for the Advancement of Sports and Health (2018-2019)

Principal Investigator

YANAKA TAKUYA  横浜商科大学, 商学部, 講師 (00781262)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords野球 / スイングスピード / 関節トルク / 筋横断面積 / 地面反力 / 打撃 / 体幹部 / 脚部 / 臀部 / バッティング / MRI / 筋量 / 角運動量 / 体幹 / 大腿 / スイング
Outline of Final Research Achievements

Swing speed is important in baseball hitting, and in order to improve this, the force exerted at each joint and the size of the muscles during hitting have each been examined. In this study, we focused on the lower limbs and trunk and examined the relationship between force and muscle size during hitting. The results showed that hitters with larger trunk and lower limb muscles had greater swing velocity. In addition, the greater the muscle size around the hip joint, the greater the force exerted at the hip joint. On the other hand, there was no relationship between muscle size and the force exerted by the joints in the trunk. These results suggest that, in hitting, large muscle size is important for improving swing speed, but in the trunk, muscle size has no effect on the amount of force exerted.

Academic Significance and Societal Importance of the Research Achievements

これまでの研究では、打撃中に発揮される力や打者の筋の大きさについてそれぞれ検討がなされてきた。各関節で発揮される力は筋の大きさの影響を受けるため、両者を同時に検討する必要があると考えられる。本研究は打撃動作を対象とした筋の大きさと発揮される力の関連を調べた初めてのものであり、今後の打撃分析において別の部位についても発展性があるものである。また、今回得られた知見は、野球の指導現場やトレーニング現場で活用することができるとともに他の打撃を行うスポーツにとっても有用な情報となるため、社会的意義の高いものである。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (2 results)

All 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (1 results)

  • [Journal Article] 野球打者の下肢および体幹部の筋横断面積とスイングスピードとの関係2020

    • Author(s)
      谷中拓哉 森下義隆
    • Journal Title

      トレーニング科学

      Volume: 32 Pages: 223-232

    • NAID

      40022464558

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 野球選手における投打の回旋方向が体幹部の筋横断面積に及ぼす影響2019

    • Author(s)
      谷中拓哉、森下義隆、髙橋英幸
    • Organizer
      第70回日本体育学会大会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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