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Understanding the relationship between surfing performance and fin design.

James R Forsyth1, Grant Barnsley2, Mehrdad Amirghasemi3

  • 1Biomechanics Research Laboratory, University of Wollongong, Wollongong, NSW, 2522, Australia. jforsyth@uow.edu.au.

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This summary is machine-generated.

Accomplished surfers accurately perceived how surfboard fin design, including grooved fins, impacted their wave-riding performance. Their subjective feedback aligned with objective data from tracking devices, validating their sensory perceptions.

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Area of Science:

  • Sports Science
  • Biomechanics
  • Materials Science

Background:

  • Surfboard fin design significantly influences surfing dynamics.
  • Understanding surfer perception of fin performance is crucial for equipment development.

Purpose of the Study:

  • To investigate if expert surfers can accurately perceive performance changes due to novel surfboard fin designs.
  • To correlate subjective surfer feedback with objective performance data.

Main Methods:

  • Developed four surfboard fin designs (conventional, single-grooved, double-grooved) using 3D printing.
  • Six expert surfers tested fins on instrumented surfboards in random, blinded conditions.
  • Quantified surfing performance using embedded sensors and assessed surfer perceptions via visual analogue scales.

Main Results:

  • Single-grooved fins were preferred for Speed and Feel.
  • Surfers' perceived performance closely matched objective sensor data.
  • Grooved fin designs generally outperformed conventional fins.

Conclusions:

  • Expert surfers possess accurate sensory perception of surfboard fin performance.
  • Novel 3D-printed grooved fin designs offer performance benefits.
  • Subjective perception aligns with objective biomechanical data in surfing.