SUNAKAWA Rikiya

写真a

Title

Associate Professor

Researcher Number(JSPS Kakenhi)

50434163

Current Affiliation Organization 【 display / non-display

  • Duty   University of the Ryukyus   Faculty of Education   Elementary and Secondary School Teacher Training Program   Associate Professor  

  • Concurrently   University of the Ryukyus   Graduate School of Community Engagement and Development   Public Policies and Relations   Associate Professor  

  • Charge of Lecture   University of the Ryukyus   Graduate School of Education   Professional Teacher Education   Associate Professor  

External Career 【 display / non-display

  • 2013.04
    -
    2018.03

    Faculty of Education Elementary and Secondary School Teacher Training Program  

  • 2018.04
     
     

     

Research Interests 【 display / non-display

  • Velocity-based training

  • Post-activation potentiation

  • トレ―ニング科学

Research Areas 【 display / non-display

  • Life Science / Sports sciences

Thesis 【 display / non-display

  • 活動後増強効果に影響を及ぼすスクワット運動の要因ー負荷重量および挙上速度損失からの検討ー

    2022.03

Published Papers 【 display / non-display

  • Effects of different concentric velocity and mechanical work on post-activation potentiation with light load squat

      12   5 - 14   2021.03 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Influence of differences in velocity loss in velocity-based training on muscle function characteristics

    Rikiya SUNAKAWA, Minami FURUGEN

      35 ( 1 ) 11 - 22   2021.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Effects of differences in squat weight and lifting velocity on post-activation potentiation

    Rikiya SUNAKAWA

      32 ( 3 ) 97 - 107   2020.09 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • The effect of different trunk training on rugby player's balance control ability ―Practical study using slackline―

    KIKUCHI Yuta, SUNAKAWA Rikiya, MASUZAWA Takuya

    Journal of Scientific Coaching for Training ( Japan Society of Scientific Coaching for Training )  3 ( 1 ) 3 - 11   2020.08 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    This study aimed to clarify the influence of training using slackline on balance ability. The subject was a rugby player of 18 healthy male college students. Subjects were divided into three groups (slack line group; SL, front and side bridge group; FS, control group; Cnt), training was conducted twice a week for 4 weeks. We measured center of gravity fluctuation, muscle strength, reaction jump test before and after training, ratings of perceived exertion (RPE) was recorded every time immediately after training. The speed of the center of gravity fluctuation wassignificantly decreased after SL and FS training. The back strength did not change between SL and FS, and Cnt showed a decreasing trend. The value of RPE was significantly lower in SL than in FS. It was suggested that the training using the slack line improved the balance ability as much as the stabilization type trunk training, and the subject felt the training strength small.

  • The effect of isotonic muscle contraction using different squat conditions on post-activation potentiation

    Sunakawa Rikiya, Shimotake Shinichiro

    Journal of Scientific Coaching for Training ( Japan Society of Scientific Coaching for Training )  2 ( 1 ) 18 - 24   2017.10 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    The purpose of this study was to investigate the influence on post-activation potentiation (PAP) by performing isotonic muscle contraction using representative squat in resistance exercise. Subjects in this study were eight healthy male college students with training experience. In order to verify the effect of PAP, a counter movement jump (CMJ) was performed before and after the back-full squat (30%1RM× 3sets × 6reps, 60%1RM× 3sets×3reps, 90%1RM×3sets×2reps), and jump height, peak power, peak velocity, mean power, mean velocity were measured and analyzed. As a result, CMJ jump height (ES=0.68, 0.63), peak power (ES=0.80, 0.96), peak velocity (ES=1.03, 0.60) showed significantly high values after 60% and 90%1 RM conditions.This suggests that performing several sets of isotonic muscle contraction using medium and high intensity squats induce PAP and it can be an effective means as training to emphasize improvement of maximum power and speed.

Presentations 【 display / non-display

  • 東京都スポーツ医科学事業 -競技力向上を目的として-

    砂川力也

    第9回体育・スポーツ科学関連三大学院合同研究会  (国士舘大学多摩キャンパス)  2011.11  -  2011.11 

SDGs 【 display / non-display

  • 人々が健康で文化的な生活を営むうえで、スポーツが担う役割について考える。

Media Coverage 【 display / non-display

  • 「ITCで真の学びを」,たんぽぽのタネ,コラム  Newspaper, magazine

    沖縄タイムス  2022.8

  • 「時代に合った運動模索」,たんぽぽのタネ,コラム  Newspaper, magazine

    沖縄タイムス  2022.8

  • 「反復学習が成功体験に」,たんぽぽのタネ,コラム  Newspaper, magazine

    沖縄タイムス  2022.7

  • 「身体「賢さ」複数競技で」,たんぽぽのタネ,コラム  Newspaper, magazine

    沖縄タイムス  2022.6

  • 「逆上がりと「生きる力」」,たんぽぽのタネ,コラム  Newspaper, magazine

    沖縄タイムス  2022.5

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