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. 2015 Jul-Aug;19(4):279-85.
doi: 10.1590/bjpt-rbf.2014.0097. Epub 2015 Sep 1.

Reliability of new software in measuring cervical multifidus diameters and shoulder muscle strength in a synchronized way; an ultrasonographic study

Leila Rahnama  1 , Asghar Rezasoltani  2 , Minoo Khalkhali-Zavieh  3 , Behnam Rahnama  4 , Farhang Noori-Kochi  5
Affiliations

Reliability of new software in measuring cervical multifidus diameters and shoulder muscle strength in a synchronized way; an ultrasonographic study

Leila Rahnama et al. Braz J Phys Ther. 2015 Jul-Aug.

Abstract

Objectives: This study was conducted with the purpose of evaluating the inter-session reliability of new software to measure the diameters of the cervical multifidus muscle (CMM), both at rest and during isometric contractions of the shoulder abductors in subjects with neck pain and in healthy individuals.

Method: In the present study, the reliability of measuring the diameters of the CMM with the Sonosynch software was evaluated by using 24 participants, including 12 subjects with chronic neck pain and 12 healthy individuals. The anterior-posterior diameter (APD) and the lateral diameter (LD) of the CMM were measured in a resting state and then repeated during isometric contraction of the shoulder abductors. Measurements were taken on separate occasions 3 to 7 days apart in order to determine inter-session reliability. Intraclass correlation coefficient (ICC), standard error of measurement (SEM), and smallest detectable difference (SDD) were used to evaluate the relative and absolute reliability, respectively.

Results: The Sonosynch software has shown to be highly reliable in measuring the diameters of the CMM both in healthy subjects and in those with neck pain. The ICCs 95% CI for APD ranged from 0.84 to 0.94 in subjects with neck pain and from 0.86 to 0.94 in healthy subjects. For LD, the ICC 95% CI ranged from 0.64 to 0.95 in subjects with neck pain and from 0.82 to 0.92 in healthy subjects.

Conclusions: Ultrasonographic measurement of the diameters of the CMM using Sonosynch has proved to be reliable especially for APD in healthy subjects as well as subjects with neck pain.

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Figures

Figure 1.
Figure 1.. The custom made chair and the loadcell placed on the U shaped device to record shoulder muscle isometric contraction.
Figure 2.
Figure 2.. Sonosynch Software Interface
See this image and copyright information in PMC

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