Joshua Farragher1, Adrian Pranata2, Doa El-Ansary2,3,4, Selina Parry5, Gavin Williams5,6, Colin Royse3,7,8, Alistair Royse3, Molly O'Donohue9, Adam Bryant1. 1. Centre for Health Exercise & Sports Medicine The University of Melbourne Melbourne Vic. Australia. 2. Department of Nursing and Allied Health Swinburne University of Technology Hawthorn Vic. Australia. 3. Department of Surgery The University of Melbourne Melbourne Vic. Australia. 4. Westmead Private Hospital Clinical Research Institute Westmead NSW Australia. 5. Department of Physiotherapy The University of Melbourne Melbourne Vic. Australia. 6. Epworth Hospital Richmond Vic. Australia. 7. The Royal Melbourne Hospital Melbourne Vic. Australia. 8. Outcomes Research Consortium Cleveland Clinic Cleveland OH USA. 9. Capital Radiology Frankston Vic. Australia.
Abstract
PURPOSE: To establish the test-retest and inter-rater reliability of lumbar multifidus (LM) and iliocostalis lumborum (IL) muscle thickness and echogenicity as derived using ultrasound imaging. METHODS: Ultrasound images of the LM and IL were collected from 11 healthy participants on two occasions, 1 week apart, by two independent assessors. Measures of LM and IL thickness and echogenicity were subject to test-retest and inter-rater reliability, which was assessed by calculation of an F statistic, the interclass correlation coefficient (ICC), the standard error of measurement, 95% confidence intervals and Bland-Altman plots. This study was given approval by The University of Melbourne Behavioural and Social Sciences Human Ethics Sub-Committee (ref: 1749845). RESULTS: Assessors A and B showed good to excellent test-retest reliability for LM thickness (ICC3,3 A: 0.89 and B: 0.98), LM echogenicity (ICC3,3 A: 0.93 and B: 0.95) and IL echogenicity (ICC3,3 A: 0.87 and B: 0.83). Test-retest reliability for IL thickness was poor for Assessor A but excellent for Assessor B. Both assessors demonstrated excellent inter-rater reliability for LM thickness and echogenicity (ICC2,3: 0.79 and 0.94), but poor reliability for IL thickness and echogenicity (ICC2,3: 0.00 and 0.39). CONCLUSIONS: Inter-rater and test-retest reliability was excellent for LM but was less reliable for measures of the IL muscle.
PURPOSE: To establish the test-retest and inter-rater reliability of lumbar multifidus (LM) and iliocostalis lumborum (IL) muscle thickness and echogenicity as derived using ultrasound imaging. METHODS: Ultrasound images of the LM and IL were collected from 11 healthy participants on two occasions, 1 week apart, by two independent assessors. Measures of LM and IL thickness and echogenicity were subject to test-retest and inter-rater reliability, which was assessed by calculation of an F statistic, the interclass correlation coefficient (ICC), the standard error of measurement, 95% confidence intervals and Bland-Altman plots. This study was given approval by The University of Melbourne Behavioural and Social Sciences Human Ethics Sub-Committee (ref: 1749845). RESULTS: Assessors A and B showed good to excellent test-retest reliability for LM thickness (ICC3,3 A: 0.89 and B: 0.98), LM echogenicity (ICC3,3 A: 0.93 and B: 0.95) and IL echogenicity (ICC3,3 A: 0.87 and B: 0.83). Test-retest reliability for IL thickness was poor for Assessor A but excellent for Assessor B. Both assessors demonstrated excellent inter-rater reliability for LM thickness and echogenicity (ICC2,3: 0.79 and 0.94), but poor reliability for IL thickness and echogenicity (ICC2,3: 0.00 and 0.39). CONCLUSIONS: Inter-rater and test-retest reliability was excellent for LM but was less reliable for measures of the IL muscle.
Authors: Joshua Brodie Farragher; Adrian Pranata; Gavin Williams; Doa El-Ansary; Selina M Parry; Jessica Kasza; Adam Bryant Journal: BMJ Open Date: 2019-08-19 Impact factor: 2.692
Authors: Anke Langenfeld; Brigitte Wirth; Andrea Scherer-Vrana; Fabienne Riner; Kyra Gaehwiler; Paola Valdivieso; B Kim Humphreys; Felix Scholkmann; Martin Flueck; Petra Schweinhardt Journal: Sci Rep Date: 2022-05-18 Impact factor: 4.996