Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/70570
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Title: Measurement agreement between a newly developed sensing insole and traditional laboratory-based method for footstrike pattern detection in runners
Authors: Cheung, RTH 
An, WW 
Au, IPH 
Zhang, JH 
Chan, ZYS 
Man, A 
Lau, FOY 
Lam, MKY 
Lau, KK 
Leung, CY 
Tsang, NW 
Sze, LKY
Lam, GWK
Issue Date: 9-Jun-2017
Source: PLoS one, 9 June 2017, v. 12, no. 6, e0175724
Abstract: This study introduced a novel but simple method to continuously measure footstrike patterns in runners using inexpensive force sensors. Two force sensing resistors were firmly affixed at the heel and second toe of both insoles to collect the time signal of foot contact. A total of 109 healthy young adults (42 males and 67 females) were recruited in this study. They ran on an instrumented treadmill at 0 degrees, +10 degrees, and -10 degrees inclinations and attempted rearfoot, midfoot, and forefoot landings using real time visual biofeedback. Intra-step strike index and onset time difference between two force sensors were measured and analyzed with univariate linear regression. We analyzed 25,655 footfalls and found that onset time difference between two sensors explained 80-84% of variation in the prediction model of strike index (R-squared = 0.799-0.836, p<0.001). However, the time windows to detect footstrike patterns on different surface inclinations were not consistent. These findings may allow laboratory-based gait retraining to be implemented in natural running environments to aid in both injury prevention and performance enhancement.
Publisher: Public Library of Science
Journal: PLoS one 
EISSN: 1932-6203
DOI: 10.1371/journal.pone.0175724
Rights: © 2017 Cheung et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The following publication Cheung RTH, An WW, Au IPH, Zhang JH, Chan ZYS, Man A, et al. (2017) Measurement agreement between a newly developed sensing insole and traditional laboratory-based method for footstrike pattern detection in runners. PLoS ONE 12(6): e0175724 is available at https://doi.org/10.1371/journal.pone.0175724
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