The variation of the strength of neck extensor muscles and semispinalis capitis muscle size with head and neck position

Rezasoltani, Asghar; Nasiri, Rasul; Faizei, Ali Mohammad; Zaafari, G.; Mirshahvelayati, A.S.; Bakhshidarabad, L.

doi:10.1016/j.jbmt.2012.07.001

Cited by 12 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The accuracy and precision of USbased images can be operator dependent, and slight changes in neck position can result in large changes in the CSA of the cervical-extensor muscles. 27 To overcome this limitation, 1 examiner performed all scans in our investigation. However, researchers should pay particular attention to standardizing participants' head and neck positions to maintain consistency.…”

Section: Discussionmentioning

confidence: 99%

Sex Differences in Ultrasound-Based Muscle Size and Mechanical Properties of the Cervical-Flexor and -Extensor Muscles

Nagai

Schilaty

Krause

et al. 2020

Journal of Athletic Training

View full text Add to dashboard Cite

Context Neck pain (NP), neck injuries, and concussions are more prevalent in female athletes than in their male counterparts. Females exhibit less neck girth, strength, and stiffness against a perturbation. As part of the clinical examination for individuals with NP, ultrasound (US)–based imaging of the cervical muscles has become common. Muscle size or thickness and stiffness can be measured with US-based B-mode and shear-wave elastography (SWE), respectively. Information on reliability, normative values, and sex differences based on US-based muscle size or thickness and stiffness in young and athletic individuals is limited. Objective To evaluate sex differences in US-based muscle size or thickness and biomechanical properties of the cervical-flexor and -extensor muscles. Design Cross-sectional study. Setting Laboratory. Patients or Other Participants A total of 13 women (age = 23.7 ± 1.9 years, height = 167.1 ± 6.1 cm, mass = 63.8 ± 5.6 kg) and 11 men (age = 25.6 ± 4.9 years, height = 178.7 ± 8.3 cm, mass = 78.9 ± 12.0 kg). Main Outcome Measure(s) The same examiner collected all measures, using US B-mode to scan the cross-sectional area and thickness of the longus colli (LC), sternocleidomastoid (SCM), cervical-extensor muscles, and upper trapezius (UT) muscle. The US SWE-mode was used to measure the stiffness of the SCM and UT. Independent t tests or Mann-Whitney U tests were calculated to determine sex differences. The intraclass correlation coefficient (ICC) measured intrarater test-retest reliability. Results Men had thicker SCMs than women (P = .01). No sex differences were present for longus colli cross-sectional area, cervical-extensor muscle thickness, or UT thickness (P > .05). In addition, no sex differences were evident for SCM (P = .302) or UT (P = .703) SWE stiffness. Reliability was good to excellent (ICC = 0.715–0.890) except for SCM SWE stiffness (ICC = 0.554). Conclusions The only sex difference was in SCM thickness. However, smaller SCMs in women did not result in less SCM SWE stiffness. We provided normative values for US-based imaging of the cervical-flexor and -extensor muscles in young and athletic men and women.

show abstract

Section: Discussionmentioning

confidence: 99%

Sex Differences in Ultrasound-Based Muscle Size and Mechanical Properties of the Cervical-Flexor and -Extensor Muscles

Nagai

Schilaty

Krause

et al. 2020

Journal of Athletic Training

View full text Add to dashboard Cite

show abstract

“…The semispinalis capitis is a massive, long cervicothoracic muscle, which functions as the main head and neck extensor muscle. It originates from the skull and courses down to the lower cervical (C3-C7) and upper thoracic vertebrae (T1-T6) (27)(28)(29). Providing a long lever arm, it is functionally highly important and thus the favourable impact of Pilates exercises on this muscle should be noteworthy.…”

Section: Discussionmentioning

confidence: 99%

Effects of Pilates and yoga in patients with chronic neck pain: A sonographic study

Uluğ¹,

Yılmaz²,

Kara³

et al. 2018

J Rehabil Med

View full text Add to dashboard Cite

show abstract

“…Ultrasound imaging enables non-invasive measurements of all five layers of the neck extensor muscles (Peolsson et al 2010;Rezasoltani et al 2013;Lee et al 2009). However, conventional ultrasound imaging (B-mode, M-mode and Doppler) reveal shape, thickness, deformation, strain and motion of muscles, not their stiffness.…”

Section: Introductionmentioning

confidence: 99%

Shear wave elastography reveals different degrees of passive and active stiffness of the neck extensor muscles

et al. 2016

View full text Add to dashboard Cite

show abstract

The variation of the strength of neck extensor muscles and semispinalis capitis muscle size with head and neck position

Cited by 12 publications

References 11 publications

Sex Differences in Ultrasound-Based Muscle Size and Mechanical Properties of the Cervical-Flexor and -Extensor Muscles

Sex Differences in Ultrasound-Based Muscle Size and Mechanical Properties of the Cervical-Flexor and -Extensor Muscles

Effects of Pilates and yoga in patients with chronic neck pain: A sonographic study

Shear wave elastography reveals different degrees of passive and active stiffness of the neck extensor muscles

Contact Info

Product

Resources

About