Publications‎ > ‎2008‎ > ‎

Automated scoring for elite half‐pipe snowboard competition: important sporting development or techno distraction?

Reference: JW Harding, CG Mackintosh, DT Martin, AG Hahn, DA James, Automated Scoring for Elite Half-Pipe Snowboard Competition: Important sporting development or techno distraction?Sports Technology 1 (6), 277-290

Abstract: We previously reported a strong relationship between video-based objective data (air time and degree of rotation) and subjectively-judged scores awarded during elite half-pipe snowboard competitions. Advancements in sport-monitoring technologies now provide the capacity to accurately and automatically quantify this objective information. This may assist current subjective coaching and competition judging protocols provided the integration process imparts a large element of control to key players within the sport. We therefore recently hosted an invitational half-pipe snowboard competition (2007 Australian Institute of Sport Micro-Tech Pipe Challenge) designed to evaluate whether the snowboarding community would embrace a competition where results were in part determined by automated objectivity. We explored the practical, logistical, and technical challenges associated with conducting such an event and evaluated the relationship between subjective judging and results predicted from objective information to see if prior research had ecological validity. Ten elite, male half-pipe snowboarders were instrumented with inertial sensors throughout this competition. A prediction equation using previously-established weightings of average air time and average degree of rotation accounted for 74 per cent of the shared variance in subjectively-judged scores awarded during this competition. Although our predictions of overall scores and rankings were good, 26 per cent of the total variance was still unexplained. This should not be considered a weakness of this approach, but a strength, as the subjective components of style and execution should never be removed from the sport. The future of half-pipe snowboarding, however, may be best guided a judging protocol that incorporates both objective and subjective criteria.

  • 1
    Harding JWToohey KMartin DT et alAutomated Inertial Feedback for Half-Pipe Snowboard Competition and the Community Perception. The Impact of Technology on Sport II. Taylor & Francis London 2008845850.

  • 2
    Harding JWToohey KMartin DTHahn AGJames DATechnology and Half-Pipe Snowboard Competition––Insight from Elite-Level Judges. The Engineering of Sport 7. Springer, Paris2008467476.
  • 3
    Harding JWSmall JWJames DA. Feature extraction of performance variables in elite half-pipe snowboarding using body mounted inertial sensors. BioMEMS and nanotechnology III. Proceedings of SPIE; 5–7 December 2007, Canberra, ACT Australia.Bellingham, WA: SPIE, 2007.
  • 4
    Harding JWMackintosh CGHahn AGJames DAClassification of aerial acrobatics in Elite half-pipe snowboarding using body mounted inertial sensors. In: EstivaletMBrissonP, eds. The Engineering of Sport 7. Vol. 2 Springer: Paris2008447456.

  • 5
    Miah MNew balls please: tennis, technology, and the changing game. In: HaakeSCoeOA, eds. Tennis, Science and Technology. Blackwell Science: London2000285292.
  • 6
    Tenner E. Why Things Bite Back: Predicting the Problems of Progress. Fourth Estate, London1996.
  • 7
    Catapult InnovationsMini Max. Catapult Innovations: Melbourne2007.
  • 8
    Mackintosh CLogan G. V21.0. Australian Institute of Sport, CRC for Micro-Technology 2004.
  • 9
    James DADavey NRice TAn accelerometer based sensor platform for in situ elite athlete performance analysis. IEEE Sensors Conference; 24–27 October 2004, Vienna, Austria. Piscataway, NJ, USA: IEEE, 2004; 276277.
  • 10
    Green JKrakauer D. New iMEMS® angular-rate-sensing gyroscopeAnalog Dialogue 2003; 373.
  • 11
    Hopkins WG. Analysis of Validity by Linear Regression. A New View of Statistics (Excel spreadsheet). [25 September 2008].
  • 12
    Doki HYamada TNagai CHoraki MDevelopment of a measurement system for snowboarding turn analysis. In: SubicA,UjihashiS, eds. The Impact of Technology in Sport. ASTA (Australasian Sports Technology Alliance): Melbourne2005324325.
  • 13
    Delorme STavoularis SKinematics of the ankle joint complex in snowboardingJournal of Applied Biomechanics 200321:394403.

  • 14
    Bianchi LPetrone NMarchiori M. A dynamometric platform for load data acquisition in snowboarding: design and field analysis.The Engineering of Sport 5 20042187193.