Lateral edge friction variability in indoor sports shoes

Timo Bagehorn, Lasse Jakobsen, Ion Marius Sivebæk, Uwe Gustav Kersting, Filip Gertz Lysdal*

*Corresponding author for this work

Research output: Contribution to journalConference article in JournalResearchpeer-review

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Abstract

It has previously been speculated that the occurrence and severity of lateral ankle sprain injuries is linked to excessive shoe-surface friction. The purpose of this study was to assess the amount of lateral edge friction in indoor sports shoes, and evaluate the variation from the traditional forefoot traction test. Therefore, we modified the ISO:12387:2019 test for slip resistance and positioned the shoe on its lateral edge while simulating a sideways movement. All tests were conducted on an indoor surface. In general, we found that lateral edge friction on average was 22% lower than forefoot friction (p<0.0001). However, linear regression showed that the forefoot test could only explain 63% of the variation in edge friction, thereby suggesting that a lateral test is needed to adequately inform on lateral edge friction. Future research is planned to determine whether a noticeable change in friction coefficient is also a ‘valuable change’, hence potentially having clinical implications for injury prevention.
Original languageEnglish
Article number31
JournalISBS Proceedings Archive
Volume39
Issue number1
Pages (from-to)117-120
Number of pages4
ISSN1999-4168
Publication statusPublished - 2021
Event39th International Society of Biomechanics in Sports Conference - Online, Canberra, Australia
Duration: 3 Sept 20216 Nov 2021
Conference number: 39
http://www.isbs2021.org/

Conference

Conference39th International Society of Biomechanics in Sports Conference
Number39
LocationOnline
Country/TerritoryAustralia
CityCanberra
Period03/09/202106/11/2021
Internet address

Keywords

  • footwear
  • traction
  • shoe-floor interaction
  • ankle injury
  • mechanical testing

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