• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Relationship Between Surfer's Posture and Mechanical Properties of Surfboard During Turn in Surfing

Research Project

Project/Area Number 21K11378
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 InstitutionShonan Institute of Technology

Principal Investigator

Nonaka Takako  湘南工科大学, 工学部, 教授 (20449549)

Co-Investigator(Kenkyū-buntansha) 小島 一恭  湘南工科大学, 工学部, 教授 (60361391)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords機械特性評価 / ねじり特性 / サーフボード / モニタリング / 変位計測 / 姿勢評価 / 負荷計測 / 機械的特性評価 / 挙動評価 / スポーツIoT
Outline of Research at the Start

サーフィンは、自身の体力と技能に合った波やボードを選ぶことができ、生涯スポーツの側面を持つ。競技技術の向上や愛好家の健康維持・促進のためには、サーフィン運動の定量的評価と効果的な運動履歴の記録が不可欠である。
本課題では、動的に変化する海面上の運動を計測するため、オンボードとオフボードの複数カメラで同時撮像し、映像分析から姿勢と動きを評価する。また、ボード上に面圧センサとひずみゲージを、ボードとサーファに慣性計測装置を設置し、ボードにかかる負荷と挙動、ボードやサーファの姿勢や移動軌跡を測定する。得られたデータから、サーフィン運動を特徴づけるファクタを特定し、ボードの特性との関係を考察する。

Outline of Final Research Achievements

This study explored the movements of surfers, the behavior of their surfboards, the mechanical properties of the surfboards, and their relationship. The multiple cameras were used to evaluate the surfer's motions but revealed a challenge in obtaining suitable video during fast and large turns due to the board or waves obstructing parts of the body from all angles. A mechanical evaluation system of boards for bending, twisting, and vibration properties was developed, and accuracy in evaluating torsional stiffness that affects tricks like turns was improved. Additionally, the board's behavior during surfing activities was monitored and replayed using a customized IMU sensor to capture posture angles. However, measurements in laboratory conditions showed that load and deformation characteristics varied significantly depending on board shape and surfer position. This underscores the need for further research to measure deformities while in use at sea.

Academic Significance and Societal Importance of the Research Achievements

サーファの体型や熟練度、使用環境によって、適したサーフボードの形状や素材は異なることが知られている。本研究で開発したボードの特性評価手法により、長さや厚みの異なるボードの機械的特性を定量的に評価することが可能となった。これにより、サーフボード設計の最適化と安全で高性能なボード開発に寄与することが期待できる。また、ターンにおけるサーファの映像による動作解析は、オンボード・オフボードいずれの映像でも難しく、使用中のボードの変形様相の可視化にも対応した室内型サーフィンシミュレーター開発の重要性が示唆された。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (6 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] A Basic Study on Influences of Mechanical Properties on Behaviors of Surfboards2023

    • Author(s)
      Meng Ziqi、Nonaka Takako
    • Journal Title

      Proc. 2023 IEEE 12th Global Conference on Consumer Electronics (GCCE)

      Volume: - Pages: 252-254

    • DOI

      10.1109/gcce59613.2023.10315572

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gas Leak Detection in Collapsed Buildings Using Multiple Micro-drones2023

    • Author(s)
      Kojima Kazuyuki、Li Yiming
    • Journal Title

      Proceedings of 2023 International Conference on Consumer Electronics - Taiwan (ICCE-Taiwan)

      Volume: - Pages: 235-236

    • DOI

      10.1109/icce-taiwan58799.2023.10227025

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CFD Simulation for Gas Detection in Disaster Areas Using Multiple Micro-Drones2023

    • Author(s)
      Kojima Kazuyuki、Li Yiming
    • Journal Title

      Proceedings of 2023 IEEE International Conference on Consumer Electronics (ICCE)

      Volume: - Pages: 1-4

    • DOI

      10.1109/icce56470.2023.10043583

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gas Detection and Concentration Distribution Prediction Using Multiple Microdrones2023

    • Author(s)
      Kazuyuki KOJIMA and Yiming Li
    • Journal Title

      Proceedings of the 9th International Conference on Manufacturing, Machine Design and Tribology (ICMDT 2023), KSME and JSME

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Monitoring System for Balance Board Simulating Side-riding Board Sports2021

    • Author(s)
      Wang ChenJing、Nonaka Takako
    • Journal Title

      Proceedings of 2021 IEEE 10th Global Conference on Consumer Electronics

      Volume: 11 Pages: 415-416

    • DOI

      10.1109/gcce53005.2021.9621865

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of an e-board for dynamic balance training2021

    • Author(s)
      Ikehara Tadaaki、Kojima Kazuyuki
    • Journal Title

      Proceedings of 2021 IEEE 10th Global Conference on Consumer Electronics

      Volume: 11 Pages: 419-420

    • DOI

      10.1109/gcce53005.2021.9621986

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] A Basic Study on Influences of Mechanical Properties on Behaviors of Surfboards2023

    • Author(s)
      Ziqi Meng and Takako Nonaka
    • Organizer
      2023 IEEE 12th Global Conference on Consumer Electronics (GCCE)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gas Leak Detection in Collapsed Buildings Using Multiple Micro-drones2023

    • Author(s)
      Kazuyuki Kojima and Yiming Li
    • Organizer
      2023 International Conference on Consumer Electronics - Taiwan (ICCE-Taiwan)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CFD Simulation for Gas Detection in Disaster Areas Using Multiple Micro-Drones2023

    • Author(s)
      Kazuyuki Kojima and Yiming Li
    • Organizer
      2023 IEEE International Conference on Consumer Electronics (ICCE)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gas Detection and Concentration Distribution Prediction Using Multiple Microdrones2023

    • Author(s)
      Kazuyuki Kojima and Yiming Li
    • Organizer
      The 9th International Conference on Manufacturing, Machine Design and Tribology (ICMDT 2023), KSME and JSME
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of an e-board system for dynamic balance training2022

    • Author(s)
      Tadaaki Ikehara and Kazuyuki Kojima
    • Organizer
      Proceedings of 2022 IEEE 4th Global Conference on Life Sciences and Technologies (LifeTech), pp. 140-141
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] ボード系スポーツのトレーニング用e-boardの開発2022

    • Author(s)
      池原忠明, 小島一恭
    • Organizer
      日本機械学会2022年度年次大会予稿集
    • Related Report
      2022 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi