Updated on 2018/11/27

写真b

KATSUMATA Yoichi

Associate Professor

Employment Record in Research 【 display / non-display

  • 2014.04
    -
    2018.09

    Tokyo University of AgricultureFaculty of Applied Bio-Science   Assistant Professor  

  • 2018.10
     
     

    Tokyo University of AgricultureFaculty of Applied Bio-Science   Associate Professor  

Research Areas 【 display / non-display

  • Sports science

Qualification and License 【 display / non-display

  • First Kind of High School Teacher License

  • High School Teacher Specialization License

Published Papers 【 display / non-display

  • Characteristics of Relative Age Effects and Anthropometric Data in Japanese Recreational and Elite Male Junior Baseball Players

    Yoichi Katsumata, Kohei Omuro, Naotoshi Mitsukawa and Hiroki Nakata

    Sports Medicine - Open   In Press   2018.11  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

  • Influence of the Relative Age Effect on the Competitive Level and Playing Position of Male Japanese Elementary School Baseball Players

    Yoichi Katsumata

    International Journal of Sport and Health Science   16   2018.10  [Refereed]

    Academic JournalResearch paper (scientific journal)   Single Work

  • Validity of a semi-quantitative food frequency questionnaire based on food groups and cooking (FFQ) with a protein supplement item in Japanese collegiate athletes

    Sasaki K, Sunami A, Yoshimura Y, Katsumata Y, Kisara K, Yokoyama Y, Kawano Y

    Journal of Physical Fitness and Sports Medicine   7 ( 2 ) 131 - 142   2018  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

  • Effect of training aimed at improving the batted ball speed on high school baseball players : Practical reesults from using a PDCA cycle

      9   369 - 385   2017.08  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

  • Effectiveness of Pilates exercise: A quality evaluation and summary of systematic reviews based on randomized controlled trials.

    Kamioka H, Tsutani K, Katsumata Y, Yoshizaki T, Okuizumi H, Okada S, Park SJ, Kitayuguchi J, Abe T, Mutoh Y.

    Complementary Therapies in Medicine   25   1 - 19   2016.01  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

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Scientific Research Funds Acquisition Results 【 display / non-display

  • Young Person Research (B)

    Project Year:  2013.04  -  2016.03   

  • Young Person Research (B)

    Project Year:  2010.04  -  2012.03   

Oral Presentation 【 display / non-display

  • The spin on a baseball in eight different pitches by a professional pitcher

    NAGAMI T, Kanosue K., Morohosi J., Omuro K., Chagawa T., Katsumata Y., Ujihara Y., Koyasu H., Maekawa H., Komiyama S.

    Symposium on sports engineering : symposium on human dynamics, 2008  2008.11  -  2008.11  The Japan Society of Mechanical Engineers

    CiNii

  • A21 The spin on a baseball in eight different pitches by a professional pitcher

    Nagami T., Kanosue K., Morohosi J., Omuro K., Chagawa T., Katsumata Y., Ujihara Y., Koyasu H., Maekawa H., Komiyama S.

    The Proceedings of Joint Symposium: Symposium on Sports Engineering, Symposium on Human Dynamics  2008  -  2008  The Japan Society of Mechanical Engineers

    The authors have recently developed a system for analyzing the spin on a baseball (Koseki et al., 2007). In the present study we analyzed the spin pitched by a professional pitcher. He pitched eight different pitches, each twice, from official pitching mound. The image of ball in the period from just before to 500 ms after the ball release was taken with a high speed video camera at 1000 fps. English alphabets E, M, A, and I were marked on the ball for image processing. Feature points from the image stream were assembled into a set of linear equations that represents orientation change between consecutive two frames by rotation matrix R, and the direction of spin axis and spin rate were obtained. Both values varied considerably depending on pitches. The recording of spin was suggested to be valuable for training if the data could be combined with those of motion analysis.

    CiNii