A comparison of craniocervical and cervicothoracic muscle strength in healthy individuals

Van Wyk, Luke, Jull, Gwendolen, Vicenzino, Bill, Greaves, Mathew and O'Leary, Shaun (2010) A comparison of craniocervical and cervicothoracic muscle strength in healthy individuals. Journal of Applied Biomechanics, 26 4: 400-406.

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Author Van Wyk, Luke
Jull, Gwendolen
Vicenzino, Bill
Greaves, Mathew
O'Leary, Shaun
Title A comparison of craniocervical and cervicothoracic muscle strength in healthy individuals
Journal name Journal of Applied Biomechanics   Check publisher's open access policy
ISSN 1065-8483
1543-2688
Publication date 2010-11
Sub-type Article (original research)
Volume 26
Issue 4
Start page 400
End page 406
Total pages 7
Place of publication Champaign, IL, United States
Publisher Human Kinetics
Collection year 2011
Language eng
Abstract The purpose of this study was to compare maximal torque exerted about the craniocervical (CC) and cervicothoracic (CT) axes in the sagittal plane using a novel dynamometry device. Maximal voluntary contraction (MVC) recordings in newton-meters (N·m) were measured in 20 males and 20 females for each of 4 tests: CT extension, CT flexion, CC extension, CC flexion. Twenty of the volunteers repeated the testing procedure on a second occasion to determine the test-retest repeatability of the measures. MVC recordings at the CT axis (extension, 30.24 ± 12.15 N·m; flexion, 18.90 ± 8.21 N·m) were 1.4-2 times greater than recordings at the CC axis (extension, 16.46 ± 7.26 N·m; flexion, 13.34 ± 5.97 N·m). Extensor to flexor strength ratios reduced from 1.75 at the CT axis to 1.24 at the CC axis, but were similar for both males and females. Good to excellent test-retest repeatability was demonstrated for all tests (ICC = 0.75-0.99, SEM = 0.50-2.44 N·m). Consistent with differences in the muscle morphology at the CC and CT axes, torque exerted about these axes differ. Separate measurement of torque about these axes potentially offers a more comprehensive profile of cervical muscle strength. © 2010 Human Kinetics, Inc.
Keyword Dynamometry
Isometric strength
Cervical spine
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Health and Rehabilitation Sciences Publications
 
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