Decreased neck muscle strength in patients with the loss of cervical lordosis

Alpaycı, Mahmut; Şenköy, Emre; Delen, Veysel; Şah, Volkan; Yazmalar, Levent; Erden, Metin; Toprak, Murat; Kaplan, Şeyhmus

doi:10.1016/j.clinbiomech.2016.02.014

Cited by 40 publications

(41 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been suggested that weakness of the neck extensor muscles is a cause of adolescent idiopathic cervical kyphosis, and isometric exercise of neck extensors over three months would improve cervical lordosis (Xiaolong et al ; Alpayci and Ilter, ). Alpayci et al revealed that patients with loss of cervical lordosis had reduced neck muscle strength, and neck extensor power was more reduced than flexor power (Alpayci et al ). On the basis of these previous results, it could be assumed that the status of cervical muscles including flexors and extensors is related to the cervical lordotic curvature.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the etiology of the loss of cervical lordosis remains uncertain. It has been suggested that clinical factors such as muscular spasm, cervical trauma, congenital defects, cervical muscle weakness, and postoperative complications are associated with the loss of the cervical lordotic curve (Xiaolong et al ; Beltsios et al ; Lee et al ; Alpayci et al ). However, the pathophysiology of the biomechanical change that disturbs this curve has not been established exactly.…”

Section: Introductionmentioning

confidence: 99%

“…In a previous study, it was suggested that isometric exercise of the neck extensor could restore the lordotic angle of the cervical spine and reduce pain in patients with loss of cervical lordosis (Alpayci and Ilter, ). Alpayci et al revealed that the neck extensor was more greatly weakened than of the neck flexor in such patients (Alpayci et al ). These studies showed that cervical extensor strengthening exercises could benefit patients with loss of cervical lordosis; however, the status of the cervical muscles including extensors and flexors and the reason why specific muscle strengthening might improve the cervical lordotic curve have not yet been explored.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Association between cervical lordotic curvature and cervical muscle cross‐sectional area in patients with loss of cervical lordosis

et al. 2018

View full text Add to dashboard Cite

Disruption of the cervical lordotic curve can cause undesirable symptoms such as neck pain, and cord compression. The purpose of this study was to investigate the biomechanics of loss of cervical lordosis by measuring the cross-sectional area (CSA) of the cervical muscles using magnetic resonance imaging (MRI), and to determine the relationship between cervical lordosis angle and cervical muscle status. The cervical lordosis angle was measured on standing lateral plain radiography using the posterior tangent technique in patients who complained of neck pain. The CSAs of the cervical flexor muscles including the longus cervicis and longus capitis, the cervical extensor muscles including the splenius capitis and semispinalis capitis, and the sternocleidomastoid muscle, were measured at the maximum levels by axial T1-weighted MRI. We compared neck muscle CSAs between the two groups, the correlation with cervical lordosis angle, and muscle status including CSA and imbalance. The CSA of the semispinalis capitis was significantly lower in the loss of cervical lordosis group, and the ratio of cervical flexor to extensor was significantly different between the two groups (P < 0.05). Partial correlation analysis revealed that the cervical lordotic angle was significantly positively correlated with the ratio of flexor to extensor muscle CSAs (P < 0.05). There is a significant relationship between cervical muscle imbalance, including extensor muscle weakness, and loss of cervical lordosis. An exercise program focusing on cervical extensor muscle strengthening and restoring the balance of flexor and extensor muscles is recommended for patients with loss of cervical lordosis. Clin. Anat. 31:710-715, 2018. © 2018 Wiley Periodicals, Inc.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Association between cervical lordotic curvature and cervical muscle cross‐sectional area in patients with loss of cervical lordosis

et al. 2018

View full text Add to dashboard Cite

show abstract

“…To limit these displacements, the nervous system controls the spinal musculature (Panjabi, 1992a(Panjabi, , 1992bPanjabi et al, 1989). Thus, abnormal muscle behavior may be an explanatory factor of the etiology of neck pain and cervical spine disorders (Alpayci et al, 2016;Cheng et al, 2014;Falla et al, 2007;Fernández-de-las-Peñas et al, 2008). Furthermore, the developmental mechanisms of surgical complications are not yet fully understood, particularly adjacent segment disease (ASD) and proximal junctional kyphosis (PJK), which might induce a secondary compensation at the level of the cervical spine.…”

Section: Introductionmentioning

confidence: 99%

A subject-specific biomechanical control model for the prediction of cervical spine muscle forces

Abbeele

Pomero

et al. 2018

Clinical Biomechanics

View full text Add to dashboard Cite

show abstract

“…With flexion, there is an increase in size of the intervertebral foramen, where nerves and blood vessels exit. Previous studies have found that, with a loss or cervical lordosis, there is cervical neck muscle weakness [1]. It has been well documented that cervical extension can lead to cervical radiculopathy.…”

Section: Discussionmentioning

confidence: 99%

Effect of a period of cervical flexion on upper extremity muscle strength

Uher¹,

Anoufriev²,

Toczko³

2020

PoA

View full text Add to dashboard Cite

Background: Technology is prevalent in almost every aspect of life, from handheld phones to computers. Increases in cervical flexion can cause a strain on the neck and muscles of the upper extremity. Objective: To examine the effect of 30 minutes of cervical flexion at 45 degrees. It was hypothesized that muscle strength will decrease after flexion, and there would be no significant differences between dominant and nondominant arms or genders. Study design: Twenty-four participants (12 male, 12 female) (n = 24; height = 173.1 + 9.3 cm; weight = 73.33 + 22.58kg) were measured before and after cervical flexion using a MicroFET2 Hand Held Digital Muscle Tester to test the middle deltoid, biceps brachii, and triceps brachii of each arm. Results: Compared to pre-measures significant differences were found in both middle deltoids and both biceps brachii, but not in either triceps brachii (p < 0.05). Overall no limited significant differences were found between genders of muscles of either arm. Significant differences (p < 0.05) were found in the dominant biceps brachii, non-dominant biceps brachii, dominant triceps brachii, dominant deltoid, and non-dominant deltoid. Conclusion: These results suggest that a normal daily degree of cervical flexion will decrease some upper extremity strength over the course of 30 minutes.

show abstract

Decreased neck muscle strength in patients with the loss of cervical lordosis

Cited by 40 publications

References 26 publications

Association between cervical lordotic curvature and cervical muscle cross‐sectional area in patients with loss of cervical lordosis

Association between cervical lordotic curvature and cervical muscle cross‐sectional area in patients with loss of cervical lordosis

A subject-specific biomechanical control model for the prediction of cervical spine muscle forces

Effect of a period of cervical flexion on upper extremity muscle strength

Contact Info

Product

Resources

About