The Influence of Footwear Sole Hardness on Slip Characteristics and Slip-Induced Falls in Young Adults

Yi Ju Tsai, Christopher M. Powers

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Theoretically, a shoe that provides less friction could result in a greater slip distance and foot slipping velocity, thereby increasing the likelihood of falling. The purpose of this study was to investigate the effects of sole hardness on the probability of slip-induced falls. Forty young adults were randomized into a hard or a soft sole shoe group, and tested under both nonslippery and slippery floor conditions using a motion analysis system. The proportions of fall events in the hard- and soft-soled shoe groups were not statistically different. No differences were observed between shoe groups for average slip distance, peak and average heel velocity, and center of mass slipping velocity. A strong association was found between slip distance and the fall probability. Our results demonstrate that the probability of a slip-induced fall was not influenced by shoe hardness. Once a slip is induced, slip distance was the primary predictor of a slip-induced fall.

Original languageEnglish
Pages (from-to)46-50
Number of pages5
JournalJournal of Forensic Sciences
Volume58
Issue number1
DOIs
Publication statusPublished - 2013 Jan

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Genetics

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