eCite Digital Repository

Measuring ultrasound images of abdominal and lumbar multifidus muscles in older adults: A reliability study


Wilson, A and Hides, JA and Blizzard, L and Callisaya, M and Cooper, A and Srikanth, VK and Winzenberg, T, Measuring ultrasound images of abdominal and lumbar multifidus muscles in older adults: A reliability study, Manual Therapy, 23 pp. 114-119. ISSN 1356-689X (2016) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd.

DOI: doi:10.1016/j.math.2016.01.004


Measurement reliability of the L4/5 lumbar multifidus (MF) muscles is high in older adults, but few studies have investigated measurement reliability of the abdominal and upper lumbar MF muscles in this age group.

OBJECTIVES: To determine measurement reliability of abdominal and lumbar MF muscles from a single ultrasound (US) image in older adults.

METHODS: Resting thickness of rectus abdominis and obliquus externus, resting and contracted thickness of obliquus internus, transversus abdominis and lumbar MF, and resting cross-sectional area (CSA) of MF levels (L2-5) were obtained from US images of 92 community-dwelling older adults (aged 65-89 years). Measurements of images were undertaken by an experienced rater and repeated 7-10 days later for intra-rater, and by a second expert rater for inter-rater calculations. Intra-rater reliability was estimated for all muscles. Inter-rater reliability was estimated for all abdominal muscles and for L5 multifidus. Reliability was estimated by intraclass correlation coefficients (ICC).

RESULTS: Intra-rater ICC(3,1) and inter-rater ICC(2,1) of resting thickness measures of all muscles and CSA of MF were ≥0.86. The ICCs for percentage thickness change were ≥0.76 for the abdominal muscles, and ≥0.42 for MF.

CONCLUSIONS: Measurement reliability of US imaging for abdominal and MF muscle thickness and MF CSA was high, and consistent with previous findings for younger adults. Reliability of percentage thickness change was lower suggesting caution is needed when using this as an outcome measure or study factor among older adults.

Item Details

Item Type:Refereed Article
Keywords:Abdominal muscles, Paraspinal muscles, Ultrasound imaging, Reliability, Older adults
Research Division:Health Sciences
Research Group:Health services and systems
Research Field:Aged health care
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Wilson, A (Dr Anitra Wilson)
UTAS Author:Blizzard, L (Professor Leigh Blizzard)
UTAS Author:Callisaya, M (Dr Michele Callisaya)
UTAS Author:Srikanth, VK (Dr Velandai Srikanth)
UTAS Author:Winzenberg, T (Professor Tania Winzenberg)
ID Code:109585
Year Published:2016
Web of Science® Times Cited:39
Deposited By:Menzies Institute for Medical Research
Deposited On:2016-06-22
Last Modified:2022-08-30

Repository Staff Only: item control page