Format

Send to

Choose Destination
J Bodyw Mov Ther. 2015 Jul;19(3):396-403. doi: 10.1016/j.jbmt.2014.05.009. Epub 2014 Jun 5.

Reliability of ultrasound thickness measurement of the abdominal muscles during clinical isometric endurance tests.

Author information

1
Department of Physical Therapy, University of Social Welfare and Rehabilitation Sciences, Evin, Koodakyar Avenue, P.O Box 1985713834, Tehran, Iran. Electronic address: shabnamshahali@yahoo.com.
2
Department of Physical Therapy, University of Social Welfare and Rehabilitation Sciences, Evin, Koodakyar Avenue, P.O Box 1985713834, Tehran, Iran. Electronic address: ara.physio@yahoo.com.
3
Department of Physical Therapy, Rehabilitation Faculty, Tehran University of Medical Sciences and Health Services, Tehran, Iran.
4
Rehabilitation Faculty, Iran Medical Sciences University, Tehran, Iran.
5
Department of Physical Therapy, University of Social Welfare and Rehabilitation Sciences, Evin, Koodakyar Avenue, P.O Box 1985713834, Tehran, Iran.
6
Department of Biomechanics and Sport Engineering, Amirkabir University of Technology, Tehran, Iran.

Abstract

The study was designed to evaluate the intra-examiner reliability of ultrasound (US) thickness measurement of abdominal muscles activity when supine lying and during two isometric endurance tests in subjects with and without Low back pain (LBP). A total of 19 women (9 with LBP, 10 without LBP) participated in the study. Within-day reliability of the US thickness measurements at supine lying and the two isometric endurance tests were assessed in all subjects. The intra-class correlation coefficient (ICC) was used to assess the relative reliability of thickness measurement. The standard error of measurement (SEM), minimal detectable change (MDC) and the coefficient of variation (CV) were used to evaluate the absolute reliability. Results indicated high ICC scores (0.73-0.99) and also small SEM and MDC scores for within-day reliability assessment. The Bland-Altman plots of agreement in US measurement of the abdominal muscles during the two isometric endurance tests demonstrated that 95% of the observations fall between the limits of agreement for test and retest measurements. Together the results indicate high intra-tester reliability for the US measurement of the thickness of abdominal muscles in all the positions tested. According to the study's findings, US imaging can be used as a reliable method for assessment of abdominal muscles activity in supine lying and the two isometric endurance tests employed, in participants with and without LBP.

KEYWORDS:

Abdominal muscles; Physical endurance; Reliability; Ultrasound

PMID:
26118508
DOI:
10.1016/j.jbmt.2014.05.009
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center