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Technique detection of cross-country ski based on high precision positioning system

Research Project

Project/Area Number 20K11411
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionTohoku University

Principal Investigator

Miyamoto Naoto  東北大学, 未来科学技術共同研究センター, 特任准教授 (60400462)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsクロスカントリースキー / 動作解析 / 走法判別 / GNSS / RTK / 動作分析
Outline of Research at the Start

クロスカントリースキー競技のスケーティング種目には3種類の走法(スーパー・ラピッド・クイック)があり,クラシカル種目には4種類の走法(ダブルポール・キックダブルポール・ダイアゴナル・ヘリングボーン)がある.選手は,スキー速度やコース傾斜などから総合的に判断して,この中から最適な走法を選択し滑走する.
本研究は,クロスカントリースキー選手の競技力向上を目的として,選手がコースのどこで,どのような時に,どの走法で滑走したかを携帯型高精度GNSSを用いて分析・可視化し,選手・コーチにフィードバックするシステムを構築する.

Outline of Final Research Achievements

In this study, sub-technique was analyzed from the head movements of cross-country skiers using a wearable kinematic GNSS. In cross-country skiing competitions, athletes need to select the most appropriate sub-technique depending on the course and speed. In this study, world-class athletes were equipped with a wearable kinematic GNSS and an action camera to perform time trials, and their head movements measured by the GNSS were used to determine their sub-technique.
As a result, the GNSS could measure the motion of the head with mm accuracy, and characteristic waveforms were obtained for each sub-technique. The discrimination rate between GNSS and camera was about 98%, which indicates that the head movement alone is sufficient to discriminate sub-technique.
Furthermore, a system was constructed to visualize the relationship between the sub-technique used and the map, slope, and speed of the course, enabling rapid feedback of the running results to athletes and coaches.

Academic Significance and Societal Importance of the Research Achievements

本研究では,クロスカントリースキー選手の競技力向上に役立つ分析・可視化システムを開発した.このシステムは,ミリメートル級の測位精度をもつ高精度ウェアラブルGNSSを用いて選手の頭の動きを計測し,選手が選択した走法を判別するとともに,コースの特徴を詳細に記録し,選手・コーチにフィードバックすることができる.ワールドクラスの選手による評価実験では,走法判別率は約98%と高い精度を示した.このシステムは,クロスカントリースキーの滑走技術や戦略の向上に有効なツールとなると考えられる.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Batteryless wireless magnetostrictive Fe30Co70/Ni clad plate for human coronavirus 229E detection2023

    • Author(s)
      Neyama Daiki、Fakhruddin Siti Masturah binti、Inoue Kumi Y.、Kurita Hiroki、Osana Shion、Miyamoto Naoto、Tayama Tsuyoki、Chiba Daiki、Watanabe Masahito、Shiku Hitoshi、Narita Fumio
    • Journal Title

      Sensors and Actuators A: Physical

      Volume: 349 Pages: 114052-114052

    • DOI

      10.1016/j.sna.2022.114052

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Studies on posture estimation and analysis of Canoe paddle using inertial sensors2022

    • Author(s)
      Akiko KONDO、Masaki TAKEDA、Naoto Miyamoto、Kiyoshi HIROSE
    • Journal Title

      The Proceedings of the Symposium on sports and human dynamics

      Volume: 2022

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Flight Measurement of a Ski Jumping using Portable Kinematic GNSS2022

    • Author(s)
      Naoto MIYAMOTO、Keizo YAMAMOTO、Satoshi MORI、Ryuji MIURA、Nozomu HATAKEYAMA、Akira MIYAMOTO
    • Journal Title

      The Proceedings of the Symposium on sports and human dynamics

      Volume: 2022

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Cross-country skiing skating technique discrimination using a high-precision kinematic GNSS2022

    • Author(s)
      Shunya UDA、Msaki TAKEDA、Naoto MIYAMOTO
    • Journal Title

      The Proceedings of the Symposium on sports and human dynamics

      Volume: 2022

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Measurement of running speed, stride length, and step frequency of 400 m track and field running using a high-precision kinematic global navigation satellite system2022

    • Author(s)
      Kazuharu SUGITA、Naoto MIYAMOTO、Masaki TAKEDA
    • Journal Title

      The Proceedings of the Symposium on sports and human dynamics

      Volume: 2022

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Numerical study of transient aerodynamic forces acting on a ski jumper considering dynamic posture change from takeoff to landing2022

    • Author(s)
      Yamamoto Keizo、Nishino Takahiro、Bale Rahul、Shimada Tokimasa、Miyamoto Naoto、Tsubokura Makoto
    • Journal Title

      Sports Biomechanics

      Volume: 1 Issue: 3 Pages: 1-15

    • DOI

      10.1080/14763141.2022.2154256

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] SKATING TECHNIQUE DETECTION IN CROSS-COUNTRY SKIING USING A KINEMATIC GLOBAL NAVIGATION SATELLITE SYSTEM. THE DIFFERENCE BETWEEN FAST AND SLOW GLIDING SKIES2023

    • Author(s)
      Takeda Masaki、Miyamoto Naoto、Uda Shunya、Vesa Linnamo、Stefan Lindinger、Thomas Stoggl
    • Organizer
      9th International Congress on Science and Skiing
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 慣性センサを用いたカヌーにおけるパドルの姿勢推定と 解析に関する研究2022

    • Author(s)
      近藤 亜希子、竹田 正樹、宮本 直人、廣瀬 圭
    • Organizer
      日本機械学会シンポジウム:スポーツ工学・ヒューマンダイナミクス2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 携帯型キネマティックGNSSを用いたスキージャンプの飛行計測2022

    • Author(s)
      宮本 直人、山本 敬三、森 敏、三浦 隆二、畠山 望、宮本 明
    • Organizer
      日本機械学会シンポジウム:スポーツ工学・ヒューマンダイナミクス2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高精度キネマティックGNSS計を用いた陸上競技400m走の走速,ストライド長,サイクルタイムの計測2022

    • Author(s)
      杉田 一陽、宮本 直人、竹田 正樹
    • Organizer
      日本機械学会シンポジウム:スポーツ工学・ヒューマンダイナミクス2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高精度キネマティックGNSS計を用いたクロスカントリースキーフリー走法の走法判別2022

    • Author(s)
      宇田 峻也、竹田 正樹、宮本 直人
    • Organizer
      日本機械学会シンポジウム:スポーツ工学・ヒューマンダイナミクス2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Stroke Analysis of Canoe Sprint Kayak Single using RTK GNSS2021

    • Author(s)
      Miyamoto N., Ohta, K., Migita, A., Suzuki, K., Miura, R., Hatakeyama, N., Miyamoto, A., Takeda M.
    • Organizer
      26th Annual European College of Sport Science (ECSS) Congress
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Stroke Analysis during a Canoe Canadian 500 m Time Trial using Highly Precision Kinematic Global Navigation Satellite System2021

    • Author(s)
      Takeda M., Ohta, K., Migita, A., Suzuki, K., Miura, R., Hatakeyama, N., Miyamoto, A., Miyamoto, N.
    • Organizer
      26th Annual European College of Sport Science (ECSS) Congress
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高精度GNSSを用いたカヌースプリントのストローク検出2021

    • Author(s)
      宮本直人,太田向柊,右田温哉,鈴木海渡,三浦隆治,畠山望,宮本明,竹田正樹
    • Organizer
      スポーツ工学・ヒューマンダイナミクス2021(SHD2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] Analysis of aerodynamics in the flight phase of ski jumping using a global navigation satellite system2020

    • Author(s)
      Naoto Miyamoto
    • Organizer
      25th Annual European College of Sport Science (ECSS) Congress
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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