Instrumental validity and intra/inter-rater reliability of a novel low-cost digital pressure algometer

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dc.contributor.authorJerez-Mayorga, D.
dc.contributor.authordos Anjos, C.F.
dc.contributor.authorde Cássia Macedo, M.
dc.contributor.authorFernandes, I.G.
dc.contributor.authorAedo-Muñoz, E.
dc.contributor.authorIntelangelo, L.
dc.contributor.authorBarbosa, A.C.
dc.date.accessioned2021-10-21T12:53:49Z
dc.date.available2021-10-21T12:53:49Z
dc.date.issued2020-10
dc.descriptionIndexación: Scopus.es
dc.description.abstractBackground: Pain assessment is a key measure that accompanies treatments in a wide range of clinical settings. A low-cost valid and reliable pressure algometer would allow objective assessment of pressure pain to assist a variety of health professionals. However, the pressure algometer is often expensive, which limits its daily use in both clinical and research settings. Objectives: This study aimed to assess the instrumental validity, and the intraand inter-rater reliability of an inexpensive digital adapted pressure algometer. Methods: A single rater applied 60 random compressions on a force platform. The pressure pain thresholds of 20 volunteers were collected twice (3 days apart) by two raters. The main outcome measurements were as follows: The maximal peak force (in kPa) and the pressure pain threshold (adapted pressure algometer vs. force platform). Cronbach's a test was used to assess internal consistency. The standard error of measurement provided estimates of measurement error, and the measurement bias was estimated with the Bland-Altman method, with lower and upper limits of agreement. Results: No differences were observed when comparing the compression results (P = 0.51). The validity and internal intra-rater consistencies ranged from 0.84 to 0.99, and the standard error of measurement from 0.005 to 0.04 kPa. Very strong (r = 0.73-0.74) to near-perfect (r = 0.99) correlations were found, with a low risk of bias for all measurements. The results demonstrated the validity and intra-rater reliability of the digitally adapted pressure algometer. Inter-rater reliability results were moderate (r = 0.55-0.60; Cronbach's a = 0.71-0.75). Conclusion: The adapted pressure algometer provide valid and reliable measurements of pressure pain threshold. The results support more widespread use of the pressure pain threshold method among clinicians. © 2020 Jerez-Mayorga et al.es
dc.description.urihttps://peerj.com/articles/10162/
dc.identifier.citationPeerJ Open Access Volume 812 October 2020 Article number 10162es
dc.identifier.doi10.7717/peerj.10162
dc.identifier.issn2167-8359
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20573
dc.language.isoenes
dc.publisherPeerJ Inces
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectInexpensivees
dc.subjectPain assessmentes
dc.subjectPressure algometryes
dc.subjectPressure pain thresholdes
dc.subjectReliabilityes
dc.subjectValidityes
dc.titleInstrumental validity and intra/inter-rater reliability of a novel low-cost digital pressure algometeres
dc.typeArtículoes
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