Rotational traction of soccer football shoes on a hybrid reinforced turf system and natural grass

Athol Thomson, C M Bleakley, Wayne Holmes, Ewen Hodge, Darren Paul , Bill Wannop

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Abstract

Traction between a football shoe and the playing surface influences a players’ ability to perform football-specific movements. Too little traction means a player might slip. Too much traction is thought to increase the risk of injury due to foot fixation on the turf. Rotational traction is linked to increased injury risk in football. Elite football is increasingly played on hybrid reinforced natural grass playing surfaces. Our aim is to assess the magnitude of rotational traction of one new hybrid turf system and compare that to a natural grass (control) surface. Nine different Football shoes from three outsole groups (artificial grass, firm ground, soft ground) were loaded onto a portable shoe-surface traction machine to collect rotational traction data on two different playing surfaces (1. Natural Rye grass, 2. A hybrid reinforced turf system) at a single testing session. Peak rotational traction was significantly different across different shoe models (F = 379.8, df = 8, p < 0.0001) and shoe outsole groups (F = 387.4, df = 2, p <.0001). No significant difference was found between the natural grass surface and the hybrid reinforced turf system after considering the minimal detectable change (MDC) of the traction device. Wide-ranging differences in peak rotational traction were found across different individual soccer shoes and outsole groups. The Adidas Nemesis (AG) showed the lowest traction and the Nike Vision (SG) shoe had the highest traction (MD 28.7 N.m; 95% CIs 26.4–30.9; p < 0.0001). The artificial grass (AG) group showed the lowest traction values while the soft ground (SG) group the highest. This objective shoe-surface traction data can help with more informed footwear choices for football played on this type of hybrid playing surface to minimize the risk of lower extremity injury.

Original languageEnglish
Pages (from-to)58-69
Number of pages12
JournalFootwear science
Volume14
Issue number1
Early online date21 Feb 2022
DOIs
Publication statusPublished online - 21 Feb 2022

Bibliographical note

Funding Information:
The open access publication of this article was funded by the Qatar National Library. No other external funding. We thank the Qatar national library for funding the open access publication fees. Aspire Sports turf for preparing the playing surfaces and their expertise.

Publisher Copyright:
© 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • Soccer
  • football
  • shoe
  • playing surface
  • hybrid grass
  • Biomedical Engineering
  • Orthopedics and Sports Medicine
  • Human Factors and Ergonomics
  • Biophysics
  • Rehabilitation
  • Physical Therapy
  • Sports Therapy

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