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Gait Posture. 2013 Jul;38(3):544-8. doi: 10.1016/j.gaitpost.2013.01.028. Epub 2013 Feb 28.

Reliability of plantar pressure platforms.

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  • 1Hospital for Special Surgery, New York, NY, USA. haferj@hss.edu

Abstract

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(®) and two Tekscan MatScan(®) 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(®) reliability correlations were greater than 0.70. Inter-MatScan(®) 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.

Copyright © 2013 Elsevier B.V. All rights reserved.

KEYWORDS:

Gait; Plantar pressures; Pressure measurement; Reliability

PMID:
23454044
[PubMed - indexed for MEDLINE]
PMCID:
PMC3732469
Free PMC Article
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