Article

Plantar pressure measurement is common practice in many research and clinical
protocols. While the accuracy of some plantar pressure measuring devices and
methods for ensuring consistency in data collection on plantar pressure measuring
devices have been reported, the reliability of different devices when testing the
same individuals is not known. This study calculated intra-mat,
intra-manufacturer, and inter-manufacturer reliability of plantar pressure
parameters as well as the number of plantar pressure trials needed to reach a
stable estimate of the mean for an individual. Twenty-two healthy adults
completed ten walking trials across each of two Novel emed-x((R)) and two Tekscan
MatScan((R)) plantar pressure measuring devices in a single visit. Intraclass
correlation (ICC) was used to describe the agreement between values measured by
different devices. All intra-platform reliability correlations were greater than
0.70. All inter-emed-x((R)) reliability correlations were greater than 0.70.
Inter-MatScan((R)) reliability correlations were greater than 0.70 in 31 and 52
of 56 parameters when looking at a 10-trial average and a 5-trial average,
respectively. Inter-manufacturer reliability including all four devices was
greater than 0.70 for 52 and 56 of 56 parameters when looking at a 10-trial
average and a 5-trial average, respectively. All parameters reached a value
within 90% of an unbiased estimate of the mean within five trials. Overall,
reliability results are encouraging for investigators and clinicians who may have
plantar pressure data sets that include data collected on different devices.
CI - Copyright (c) 2013 Elsevier B.V. All rights reserved.

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