Investigating cervical flexion-relaxation ratio in subjects with cervical lateral spinal stenosis compared with asymptomatic controls: A case control study.

The cervical flexion-relaxation ratio (FRR) is known as a quantitative measure of the ability of the cervical extensor muscles to relax during the full flexion of the cervical spine. Compared with subjects suffering from non-specific neck pain, the changes occurring in the pattern of the neck muscle...

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Published in:Journal of Bodywork & Movement Therapies Vol. 40; pp. 893 - 899
Main Authors: Javanshir, Khodabakhsh, Akbarnejad-Basra, Zahra, Saadat, Payam, Mousavi-Khatir, Roghayeh
Format: research Journal Article
Published: Churchill Livingstone, Inc. Oct2024
Online Access:View this record in EBSCOhost
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      dt: Oct2024
      vid: 40
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      pub: Churchill Livingstone, Inc.
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        181035811
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        10.1016/j.jbmt.2024.04.047
        181035811
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        atl: Investigating cervical flexion-relaxation ratio in subjects with cervical lateral spinal stenosis compared with asymptomatic controls: A case control study.
      aug:
        au:
          Javanshir, Khodabakhsh
          Akbarnejad-Basra, Zahra
          Saadat, Payam
          Mousavi-Khatir, Roghayeh
        affil: Department of Physical Therapy, School of Rehabilitation Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
      sug:
        subj:
          Range of Motion Evaluation
          Cervical Vertebrae Physiopathology
          Spinal Stenosis Complications
          Muscle Relaxation
          Neck Muscles Physiopathology
          Human
          Male
          Female
          Adult
          Middle Age
          Comparative Studies
          Descriptive Statistics
          Case Control Studies
          Electromyography
          Neck Pain Physiopathology
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Male
          Female
      ab: The cervical flexion-relaxation ratio (FRR) is known as a quantitative measure of the ability of the cervical extensor muscles to relax during the full flexion of the cervical spine. Compared with subjects suffering from non-specific neck pain, the changes occurring in the pattern of the neck muscles' functions in cases with cervical spinal stenosis are not yet well understood. Therefore, this study aimed to compare cervical FRR in subjects with cervical lateral spinal stenosis and asymptomatic controls. In total, 25 subjects with cervical lateral spinal stenosis (aged 44.7 ± 10.4) and 25 asymptomatic individuals (aged 44.3 ± 10.8) were included in this study. These participants performed full-neck flexion, and at the same time, the electrical activity of the cervical erector spinae (CES) muscles was recorded bilaterally. Cervical FRR was further calculated by analyzing the electromyographic data recorded for each muscle. The mean cervical FRR was significantly lower (P = 0.015) and the FRR asymmetry (ΔFRR) was significantly higher (P = 0.003) in the patients than asymptomatic controls. In addition, the cervical FRR of the involved side was significantly lower in the subjects with cervical pain compared with that in the non-involved one (P = 0.004). There was also a significant difference in the cervical extension (CE) angle between both study groups (P < 0.001), while the cervical flexion (CF) angle was not different (P = 0.25). According to the study results, FRR and its asymmetry in the subjects with cervical lateral spinal stenosis were significantly different from that in asymptomatic controls and the CE angle declined in these subjects.
      pubtype: Academic Journal
      doctype:
        research
        Journal Article
      ougenre: Article
    language: English
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