Measurement agreement between a newly developed sensing insole and traditional laboratory-based method for footstrike pattern detection in runners

Roy T H Cheung, Winko W An, Ivan P H Au, Janet H Zhang, Zoe Y S Chan, Alfred Man, Fannie O Y Lau, Melody K Y Lam, K K Lau, C Y Leung, N W Tsang, Louis K Y Sze and Gilbert W K Lam

PLOS ONE, 2017, vol. 12, issue 6, 1-7

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°, +10°, and -10° 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

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0175724

DOI: 10.1371/journal.pone.0175724

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