Pressure algometry in healthy subjects

Inter-examiner variability

Fabio Antonaci, Trond Sand, Guilherme A. Lucas

Research output: Contribution to journalArticle

145 Citations (Scopus)

Abstract

The purpose of this study was to estimate inter-examiner reliability of head and neck algometry. Pain perception thresholds were assessed with a mechanical pressure algometer in 21 healthy individuals. Thresholds were assessed at 13 symmetrical points on each side of the head and neck, at the deltoid muscle and at the median finger. The pressure range of the instrument proved insufficient to study the pain perception threshold on the finger, however. Two different examiners carried out one or two examinations in each subject during one day. The sequence of investigations was varied randomly. The inter-examiner reliability was found to be good, with a mean intra-class correlation coefficient (ICC) of 0.75. Intra-examiner reproducibility was excellent (mean ICC = 0.84). The mean inter-examiner coefficient of variation was 18.7%, while the mean coefficient of repeatability (CR) was 1.60 kg/cm2. In comparison, the mean intra-examiner coefficient of variation was 15% while the mean CR was 1.29 kg/cm2. Statistically significant differences between examiners were found for the frontal point (p2. In conclusion, manual algometry with a rather inexpensive mechanical device has a good to excellent inter-rater reliability. When studying patients, however, the possible bias introduced by different examiners should be taken into account, both regarding study design and data analysis.

Original languageEnglish
Pages (from-to)3-8
Number of pages6
JournalScandinavian Journal of Rehabilitation Medicine
Volume30
Issue number1
DOIs
Publication statusPublished - Mar 1998

Fingerprint

Pain Perception
Pain Threshold
Fingers
Healthy Volunteers
Neck
Head
Deltoid Muscle
Pressure
Equipment and Supplies

Keywords

  • Algometry
  • Headache
  • Pain
  • Pain pressure threshold

ASJC Scopus subject areas

  • Rehabilitation

Cite this

Pressure algometry in healthy subjects : Inter-examiner variability. / Antonaci, Fabio; Sand, Trond; Lucas, Guilherme A.

In: Scandinavian Journal of Rehabilitation Medicine, Vol. 30, No. 1, 03.1998, p. 3-8.

Research output: Contribution to journalArticle

@article{76e754a014204e48995d6efc9f54506a,
title = "Pressure algometry in healthy subjects: Inter-examiner variability",
abstract = "The purpose of this study was to estimate inter-examiner reliability of head and neck algometry. Pain perception thresholds were assessed with a mechanical pressure algometer in 21 healthy individuals. Thresholds were assessed at 13 symmetrical points on each side of the head and neck, at the deltoid muscle and at the median finger. The pressure range of the instrument proved insufficient to study the pain perception threshold on the finger, however. Two different examiners carried out one or two examinations in each subject during one day. The sequence of investigations was varied randomly. The inter-examiner reliability was found to be good, with a mean intra-class correlation coefficient (ICC) of 0.75. Intra-examiner reproducibility was excellent (mean ICC = 0.84). The mean inter-examiner coefficient of variation was 18.7{\%}, while the mean coefficient of repeatability (CR) was 1.60 kg/cm2. In comparison, the mean intra-examiner coefficient of variation was 15{\%} while the mean CR was 1.29 kg/cm2. Statistically significant differences between examiners were found for the frontal point (p2. In conclusion, manual algometry with a rather inexpensive mechanical device has a good to excellent inter-rater reliability. When studying patients, however, the possible bias introduced by different examiners should be taken into account, both regarding study design and data analysis.",
keywords = "Algometry, Headache, Pain, Pain pressure threshold",
author = "Fabio Antonaci and Trond Sand and Lucas, {Guilherme A.}",
year = "1998",
month = "3",
doi = "10.1080/003655098444255",
language = "English",
volume = "30",
pages = "3--8",
journal = "Scandinavian Journal of Rehabilitation Medicine",
issn = "0036-5505",
publisher = "Taylor and Francis Ltd.",
number = "1",

}

TY - JOUR

T1 - Pressure algometry in healthy subjects

T2 - Inter-examiner variability

AU - Antonaci, Fabio

AU - Sand, Trond

AU - Lucas, Guilherme A.

PY - 1998/3

Y1 - 1998/3

N2 - The purpose of this study was to estimate inter-examiner reliability of head and neck algometry. Pain perception thresholds were assessed with a mechanical pressure algometer in 21 healthy individuals. Thresholds were assessed at 13 symmetrical points on each side of the head and neck, at the deltoid muscle and at the median finger. The pressure range of the instrument proved insufficient to study the pain perception threshold on the finger, however. Two different examiners carried out one or two examinations in each subject during one day. The sequence of investigations was varied randomly. The inter-examiner reliability was found to be good, with a mean intra-class correlation coefficient (ICC) of 0.75. Intra-examiner reproducibility was excellent (mean ICC = 0.84). The mean inter-examiner coefficient of variation was 18.7%, while the mean coefficient of repeatability (CR) was 1.60 kg/cm2. In comparison, the mean intra-examiner coefficient of variation was 15% while the mean CR was 1.29 kg/cm2. Statistically significant differences between examiners were found for the frontal point (p2. In conclusion, manual algometry with a rather inexpensive mechanical device has a good to excellent inter-rater reliability. When studying patients, however, the possible bias introduced by different examiners should be taken into account, both regarding study design and data analysis.

AB - The purpose of this study was to estimate inter-examiner reliability of head and neck algometry. Pain perception thresholds were assessed with a mechanical pressure algometer in 21 healthy individuals. Thresholds were assessed at 13 symmetrical points on each side of the head and neck, at the deltoid muscle and at the median finger. The pressure range of the instrument proved insufficient to study the pain perception threshold on the finger, however. Two different examiners carried out one or two examinations in each subject during one day. The sequence of investigations was varied randomly. The inter-examiner reliability was found to be good, with a mean intra-class correlation coefficient (ICC) of 0.75. Intra-examiner reproducibility was excellent (mean ICC = 0.84). The mean inter-examiner coefficient of variation was 18.7%, while the mean coefficient of repeatability (CR) was 1.60 kg/cm2. In comparison, the mean intra-examiner coefficient of variation was 15% while the mean CR was 1.29 kg/cm2. Statistically significant differences between examiners were found for the frontal point (p2. In conclusion, manual algometry with a rather inexpensive mechanical device has a good to excellent inter-rater reliability. When studying patients, however, the possible bias introduced by different examiners should be taken into account, both regarding study design and data analysis.

KW - Algometry

KW - Headache

KW - Pain

KW - Pain pressure threshold

UR - http://www.scopus.com/inward/record.url?scp=0031912229&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031912229&partnerID=8YFLogxK

U2 - 10.1080/003655098444255

DO - 10.1080/003655098444255

M3 - Article

VL - 30

SP - 3

EP - 8

JO - Scandinavian Journal of Rehabilitation Medicine

JF - Scandinavian Journal of Rehabilitation Medicine

SN - 0036-5505

IS - 1

ER -