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A study of some method of protecting damage of hamate bone at baseball hitting ; including connection with the batting skill

Research Project

Project/Area Number 10680070
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 体育学
Research InstitutionChiba Keizai College

Principal Investigator

OHNUMA Toru  Chiba Keizai College, その他の部局等, Professor (70261089)

Co-Investigator(Kenkyū-buntansha) OIKAWA Ken  Tokyo Gakugei University, Department of Education, Lecturer
MIKAMI Shuji  Chiba Keizai College, Professor
NAKAMURA Toshiyasu  Fjita Health University, medical department, 講師
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1999: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1998: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordsbaseball / hitting / foul tip / hemate bone / palm / motion equation of movement of a bat / skill of hitting / Cuban batter and Japanese batter / スポーツ傷害 / 感電ゴムセンサー
Research Abstract

In main study of this project we examined batters with 'finger grip' (a normal grip) and batters with 'palm grip' (grasping a knob of a bat into batter's palm) to know the following two things.
1) the distance between the hook of hamate bone of the batter and the grasped bat
2) the pressure applied to the surface of his palm, under which the hook of hamate is located, when the batter hits a ball, As a result we have seen that,
1) employing 'palm grip', the distance between the hook and the grasped bat is 10mm. which is about half that of 'finger grip',
2) employing 'palm grip', the pressure applied to the surface of his palm in the instance of hitting a ball is about double of that with 'finger grip', and
3) in the case of foul tip with 'palm grip', the pressure applied to the palm is especially higher.
In additional the motion equation concerning the movement of a bat was solved to calculate the power added to the bat by both hands from the data of a high-speed video shooting. So Cuban and Japanese batter's batting data were calculated in this expression. In addition, the batting skill of both was compared based on the calculated physical value, and other indexes that were calculated for the sake of comparison. As a result, it was clarified that in the batting skill of each batter there were some differences to speak quantitatively.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (6 results)

All 2004 1999 1998

All Journal Article (2 results) Presentation (4 results)

  • [Journal Article] バットのグリップの握り方と有鉤骨骨折の危険性について2004

    • Author(s)
      及川研・大沼徹
    • Journal Title

      Baseball Clinic 15

      Pages: 22-25

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Journal Article] Methods of gripe at baseball hitting and the danger of bone fracture of hamate bone2004

    • Author(s)
      Ken Oikawa, Toru Ohnuma
    • Journal Title

      Baseball Clinic 15(1)

      Pages: 22-25

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Presentation] バットスイング時における握り状態の解明1999

    • Author(s)
      前山正憲, 及川研, 他
    • Organizer
      日本バイオメカニクス学会講演会
    • Place of Presentation
      つくば
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Presentation] Fracture mechanism of bone during batting1999

    • Author(s)
      Masanori Meyama, Ken Oikawa, et al.
    • Organizer
      Lecture meeting of japanese society of biomechanics
    • Place of Presentation
      Tukuba
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Presentation] バットスイング時における握り状態の解明1998

    • Author(s)
      中澤伸廣, 及川研, 他
    • Organizer
      日本機会学会学生発表会
    • Place of Presentation
      金沢
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Presentation] Analysis of grip pressure chage during the baseball-ba-swing1998

    • Author(s)
      Nobuhiro Nakazawa, Ken Oikawa, et al.
    • Organizer
      The student presentation meeting of the Japan society of mechanical engineers
    • Place of Presentation
      Kanazawa
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary

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Published: 1998-04-01   Modified: 2016-04-21  

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