Assessment of Neck Muscle Shear Modulus Normalization in Women with and Without Chronic Neck Pain

Overview

Journal Diagnostics (Basel)

Specialty Radiology

Date 2022 Jul 27

PMID 35892502

Authors

Angela V Dieterich

Utku Sukru Yavuz

Frank Petzke

Antoine Nordez

Affiliations

Soon will be listed here.

Abstract

Identifying the objective stiffness of the neck muscles facilitates the early and specific diagnosis of neck pain and targeted therapy. However, individual variation in the muscle shear modulus obscures differences between healthy and diseased individuals. Normalization may improve the comparability between individuals. The shear modulus at different functional tasks served as a reference for normalizing the neck muscles' shear modulus of 38 women, 20 with chronic neck pain and 18 asymptomatic. Reference tasks were , , , . The effects of normalization on within-group variation and between-group differences were compared. Normalization with was discarded due to imaging problems. Normalization with , , , and reduced within-group variation, by 23.2%, 26.8%, 11.6%, and 33.6%, respectively. All four normalization approaches reduced the -values when testing for between-group differences. For the pain group, normalization with and indicated less normalized muscle stiffness, while normalization with and indicated higher stiffness. The contradictory results are explainable by non-significant group differences in the reference tasks. Normalization of the muscle shear modulus is effective to reduce within-group variation, but a trustworthy normalization approach for group comparisons has yet to be identified.

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