Validity of estimating center of pressure during walking and running with plantar load from a three-sensor wireless insole

Richard Brindle, C M Bleakley, Jeffrey B. Taylor, Robin M Queen, Kevin R. Ford

Research output: Contribution to journalArticlepeer-review

Abstract

The purpose of this study was to determine if estimated center of pressure (COP) from plantar force data collected using three-sensor loadsol insoles was comparable to the COP from plantar pressure data collected using pedar insoles during walking and running. Ten healthy adults walked and ran at self-selected speeds on a treadmill while wearing both a loadsol and pedar insole in their right shoe. Plantar force recorded from the loadsol was used to estimate COP along mediolateral (COPx) and anteroposterior (COPy) axes. The estimated COPx and COPy were compared with the COPx and COPy from pedar using limits of agreement and Spearman’s rank correlation. There were significant relationships and agreement within 5 mm in COPx and 20 mm in COPy between loadsol and pedar at 20–40% of stance during walking and running. However, loadsol demonstrated biases of 7 mm in COPx and 10 mm in COPy compared to pedar near initial contact and toe-off.
Original languageEnglish
Article numbere8
Pages (from-to)1-6
Number of pages6
JournalWearable Technologies
Volume3
DOIs
Publication statusPublished - 6 Jun 2022

Bibliographical note

No funding was received for this work

Keywords

  • centre of pressure
  • plantar force
  • three sensor insole
  • validity

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