Abstract
BackgroundThe Footscan® platform system is one of the most commonly used clinical tools for the measurement of the foot pressure. The present study was designed to assess the repeatability of the system and identify the range of loading parameters observed in the normal foot.MethodsMeasurements were collected from 32 healthy participants, 15 females and 17 males, twice at an interval of 1 week. Peak pressure (PP), contact time (CT), contact area (CA), pressure-time integral (PTI), and maximum force (MaF) were recorded; these parameters were investigated in 10 areas of the foot: medial heel, lateral heel, midfoot, first to fifth metatarsals, hallux, and toes 2–5. The intra-session repeatability was evaluated by calculating the intraclass correlation coefficients (ICCs) and coefficients of variation (CVs) across the three repeated trials within the same session. The inter-session repeatability was assessed using the average of the three trials in each session to determine the ICCs and CVs.ResultsThe ICCs showed moderate to good repeatability for every variable of interest, and the CVs were all <28%. The highest zones of PP were found under the second and third metatarsals, followed by the medial heel. The CT was 68.5–82.8% of the total stance time under the metatarsal heads. CA was highest under the midfoot, PTI was highest under the second metatarsal, and MaF was highest under the medial heel.ConclusionsFootscan® platform system was found to be repeatable. Thus, it can be used as a valuable tool in the assessment of plantar pressure distribution, and the normal values of the foot loading parameters identified in this study can be employed to provide a reference range for the gait analysis performed by the Footscan® system.
Highlights
The Footscan® platform system is one of the most commonly used clinical tools for the measurement of the foot pressure
Experimental apparatus and set-up The dynamic plantar pressure parameters were recorded using a Footscan® pressure plate (RSscan International, Olen, Belgium, 2096 × 472 × 18 mm, with 16,384 resistive sensors arranged in a 256 × 64 matrix at a resolution of 2 sensors/cm2, data acquisition frequency: 125 Hz, and pressure range: 0–200 N/cm2), which was connected to a computer
For the pressure-time integral (PTI), the intra-session intraclass correlation coefficients (ICCs) were moderate in T1, toes 2–5 (T2–5), first metatarsal (M1), and MF zones and good in the remaining 6 zones
Summary
The Footscan® platform system is one of the most commonly used clinical tools for the measurement of the foot pressure. An ideal plantar pressure system should have the advantages of convenient use, comfort, economy, sanitation, safety, small occupation area, Presently, there are several brands of pressure measuring systems used in the clinic, including the in-shoe measurement systems (Novel Pedar®, TekScan F-Scan®, RS-Scan Insole®, WalkinSense®, and IBV Biofoot®) and platform systems (Novel Emed®, TekScan MatScan®, Medicapteurs S-Plate®, and the RS-Scan Footscan®) [8]. Most of these have proved to be reliable tools for. De Cock et al [18] investigated the temporal characteristics of foot rollover during jogging with the Footscan® platform and reported an adequate reliability while measuring the temporal parameter
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