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Clin Biomech (Bristol, Avon). 2002 May;17(4):315-7.

M-mode ultrasound: a reliable measure of transversus abdominis thickness?

Author information

1
Clinical Research Centre for Health Professions, Aldro Building, 49 Darley Road, Eastbourne BN20 7UR, UK. s.bunce@bton.ac.uk

Abstract

OBJECTIVE:

The purpose of this study was to establish a reliable method for measuring transversus abdominis thickness in asymptomatic human subjects in supine lying, standing and walking.

DESIGN AND METHODS:

This was a single operator reliability study using ultrasound imaging to measure 22 subjects on three separate occasions. A purpose built high-density foam reinforced belt was used to house and position the transducer over the mid-point of the transversus abdominis. Each subject was imaged in supine, standing, and treadmill walking at 3 kph. Intraclass correlation coefficients and standard error of measurement analysis were used to measure the data.

RESULTS:

The correlation coefficient data analysis resulted in intraclass correlation coefficients of 0.94 (standard error of measurement 0.35) in supine lying, 0.88 (0.66) in standing and 0.88 (0.56) in walking.

CONCLUSION:

The method described is a reliable tool for measuring changes in thickness of transversus abdominis in supine lying, standing and walking.

RELEVANCE:

This procedure has the potential to detect dysfunctional changes in abdominal muscle activity for patients with low back pain in a functional setting.

PMID:
12034127
[Indexed for MEDLINE]

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