Disturbance of neck proprioception and feed-forward motor control following static neck flexion in healthy young adults

Mousavi-Khatir, Roghayeh; Talebian, Saeed; Toosizadeh, Nima; Olyaei, Gholamreza; Maroufi, Nader

doi:10.1016/j.jelekin.2018.04.013

Cited by 14 publications

(13 citation statements)

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“…Mousavi‐Khatir et al . reported that a 10‐min static flexion could lead to changes in the neck proprioception and feed‐forward control on account of mechanical and neuromuscular changes in the viscoelastic cervical spine structures, and these changes in sensory‐motor control could be a risk factor for neck pain and injury 25 . Besides, PSPs are much more taxing than moving forces 26 .…”

Section: Discussionmentioning

confidence: 99%

Flexion Dysfunction of Atlanto‐Occipital Joint Associated with Cervical Spondylosis

Long

et al. 2021

Orthopaedic Surgery

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Objective To investigate the association between atlanto‐occipital radiographic alignment in flexion and cervical spondylosis (CS). Methods This is a retrospective case‐control study. CS patients were recruited from our hospital, and the age/gender/body mass index (BMI)‐matched healthy controls were selected from the subjects in health examinations at the same hospital between January 2015 and May 2019. A total of 464 subjects was included in the study. There are 282 males and 182 females. The ages of patients were 20 to 67 years, and the mean age was 33.9 years. CS patients were considered the case group. Based on surgical treatments, they were subdivided into non‐operation group and operation group. The operation group and non‐operation group had 45 and 187 patients, respectively, while 232 subjects were included in the control group. The angle between McGregor's line and C1 line (O‐C1 angle) was evaluated on images taken in flexion (F‐OC) and neutral positions (N‐OC) independently. The relationship between the FOC (FOC=F‐OC—N‐OC) and Neck Disability Index (NDI) was examined, and the involvement of the FOC in the onset of CS was analyzed. Receiver operating characteristic (ROC) curve analysis was performed to determine the optimal cut‐off for detecting an increased risk of CS. Results The median follow‐up time was 51.6 months (25–115 months). The case groups, especially the operation group, tended to be older (55.8 ± 11.2 vs 41.6 ± 13.8 vs 23.5 ± 5.5 years, P < 0.001), have a higher NDI score (12.2 ± 4.5 vs 6.2 ± 2.1 vs 3.2 ± 1.2, P < 0.001), and longer medical history (10.5 ± 9.5 vs 6.8 ± 11.2 years, P < 0.001). One‐way analysis of variance showed statistically significant differences in FOC between the control and case groups (1.4° ± 1.2° vs 3.6° ± 1.9° vs 7.2° ± 2.0°, P < 0.001). Besides, a post‐hoc Tukey test showed a lower FOC in the operation group compared with that in the non‐operation group (1.4° ± 1.2° vs 3.6° ± 1.9°, P < 0.001). Using FOC as a radiological predictive model to predict CS, the cut‐off value was 4.2°. Using FOC as a radiological predictive model to predict CS, the area under the curve (AUC) was 0.86 (95% CI: 0.78–0.92, P < 0.001). In the univariable risk analysis model, conditional logistic regression showed that the FOC level was an independent factor with an important role in the risk of CS. The odds rose to 8.2 times when FOC reached the level under 4.2° (OR = 8.2; 95% CI: 6.4–10.0; P < 0.001). There existed a significant negative correlation between FOC levels and NDI (r = −0.451, P = 0.016). Conclusions Stiff O‐C1, which is defined as FOC ≤ 4.2°, represented decreased flexion dysfunction of atlanto‐occipital joint and is closely associated with high risk for the occurrence of CS. This finding could show a possible relationship between upper and lower cervical spine and help spine surgeons to understand the pathological process of CS and implement appropriate management.

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Section: Discussionmentioning

confidence: 99%

Flexion Dysfunction of Atlanto‐Occipital Joint Associated with Cervical Spondylosis

Long

et al. 2021

Orthopaedic Surgery

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“…When using smartphones, people often flex their necks down to look at the lowered object and keep their head in a forward position for a long time (2,16). In a study conducted; cervical flexion postures lasting longer than 10 minutes alter erector spine muscle activation, causing elongation of posterior cervical tissues, decreasing the excitability of receptors and reducing neural conduction activity (17). Such movements were associated with a high risk of chronic neck pain (18).…”

Section: Discussionmentioning

confidence: 99%

How does smartphone usage affect the severity of neck pain, neck-pain related disability, and cervical lordosis? A pilot study

Cankurtaran

Yığman

et al. 2021

Med Sci Discov

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Objective: Long-term and repetitive use of smartphones may cause musculoskeletal symptoms such as neck pain. This pilot study aimed to examine the effect of smartphone usage on neck pain, disability, and cervical lordosis. Material and Methods: Seventy-eight patients were enrolled in this cross-sectional pilot study. The level of smartphone use was evaluated with the Smartphone addiction scale-short version (SAS-SV). Neck Bournemouth Questionnaire (NBQ), Neck Disability Index (NDI), and 100 mm Visual Analog Scale (VAS) were used to assess pain and disability. Cervical lordosis angle was measured using the Cobb method. Results: A positive significant correlation with low correlation coefficient (r= 0.277, p=0.014; r: 0.295, p=0.009) was determined between SAS-SV and NBQ, and NDI. However, no correlation was found between SAS-SV and cervical lordosis angle (p>0.05). When applying simple linear regression modeling to predict neck pain severity, the SAS-SV total score alone explained 7.7% of the variance of the NBQ and 9.0% of the variance of the NDI total score. Conclusion: We concluded that it would be beneficial to question the frequency and position of smartphone use, to recommend to use it less, and to avoid prolongation in neck flexion for patients with chronic neck pain.

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“…Mousavi reported that a 10-min static exion could lead to changes in the neck proprioception and feedforward control on account of mechanical and neuromuscular changes in the viscoelastic cervical spine structures and these changes in sensory-motor control could be a risk factor for neck pain and injury [23]. Besides, PSPs are much more taxing than moving forces [24].…”

Section: Discussionmentioning

confidence: 99%

Flexion Dysfunction of Atlanto-occipital Joint as a Risk Factor for Cervical Spondylosis

Long¹,

Yi²,

Tan³

2020

Preprint

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BACKGROUND: There exist varied craniocervical flexion angles from the teenagers to the elderly. To our best knowledge, there is no prior study to examine the role of range of motion (ROM) of the atlanto-occipital joint in the pathogenesis of cervical spondylosis (CS). The purpose of this study was to investigate the association between atlanto-occipital radiographic alignment in flexion and CS.METHODS: 232 CS patients, including 45 patients who accepted surgical treatment, were retrospectively reviewed. The angle between McGregor’s line and C1 line (O-C1 angle) was evaluated on images taken in flexion (F-OC) and neutral positions (N-OC) independently. The relationship between the FOC (FOC=F-OC—N-OC) and Neck Disability Index (NDI) was examined, and the involvement of the FOC in the onset of CS was analyzed. Receiver operating characteristic (ROC) curve analysis was performed to determine the optimal cut-off for detecting an increased risk of CS.RESULTS: The FOC showed a significant correlation with NDI(P<0.05). The mean FOC was significantly lower in the CS groups than in the control group (P<0.001). Logistic regression analysis showed involvement of the FOC in the onset of CS, and the threshold value according to receiver operating characteristic curve analysis was 4.2 degree, with the odds ratio of 8.2 (95% CI:6.4–10.0; P<0.001). CONCLUSION: Stiff atlanto-occipital joint, represented by low FOC, is an independent risk factor in the incidence of CS compared with healthy individuals. This parameter can help spine surgeons to identify these people to implement appropriate preventive and management steps.

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Disturbance of neck proprioception and feed-forward motor control following static neck flexion in healthy young adults

Cited by 14 publications

References 68 publications

Flexion Dysfunction of Atlanto‐Occipital Joint Associated with Cervical Spondylosis

Flexion Dysfunction of Atlanto‐Occipital Joint Associated with Cervical Spondylosis

How does smartphone usage affect the severity of neck pain, neck-pain related disability, and cervical lordosis? A pilot study

Flexion Dysfunction of Atlanto-occipital Joint as a Risk Factor for Cervical Spondylosis

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