Preliminary Study of Wide Base-of-Support Footwear in Preventing Falls Caused by Lateral Slip during Walking

• Yamaguchi Takeshi

  Graduate School of Engineering, Tohoku University

• Yano Masaru

  Graduate School of Engineering, Tohoku University

• Fukuzawa Shinya

  Graduate School of Engineering, Tohoku University

• Onodera Hiroshi

  Japan Science and Technology Agency (JST)-CREST

• Hokkirigawa Kazuo

  Graduate School of Engineering, Tohoku University

抄録

The present preliminary study examined whether an increase in the lateral width of footwear (base-of-support width) can reduce the risk of falling caused by induced lateral slip while turning on slippery surfaces. Wide base-of-support (BOS) footwear was designed and manufactured, with lateral widening achieved by fixing a BOS extension, using a planar linkage of 70-mm width on the lateral side of normal BOS footwear. Gait trials were conducted on 16 young healthy male adults. Subjects were instructed to walk in a straight line and to turn 60° to the right on a stainless steel floor covered with glycerol solution. As compared with the normal BOS footwear, the wide BOS footwear reduced the frequency of trials in which fall occurred due to lateral slip by up to 67% and the slip distance and slip velocity of the supporting foot were reduced by up to 40% and 35%, respectively. The results demonstrated the efficacy of increased lateral BOS width in reducing the risk of fall caused by induced lateral slip.

収録刊行物

• Tribology Online

  Tribology Online 7 (3), 159-164, 2012

  一般社団法人 日本トライボロジー学会

キーワード

• slip
• fall
• base-of-support
• footwear
• friction

詳細情報

• CRID: 1390282680247166208
• NII論文ID: 130002099858
• DOI: 10.2474/trol.7.159
• ISSN: 18812198
• ISSN: 1881218X
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可