颈前肌等长收缩对颈椎前凸的影响。
Impact of Isometric Contraction of Anterior Cervical Muscles on Cervical Lordosis.
作者信息
Fedorchuk Curtis A, McCoy Matthew, Lightstone Douglas F, Bak David A, Moser Jacque, Kubricht Brett, Packer John, Walton Dustin, Binongo Jose
机构信息
Private Practice, Cumming, GA, USA.
FVS Non-Profit, Kennesaw, GA, USA.
出版信息
J Radiol Case Rep. 2016 Sep 30;10(9):13-25. doi: 10.3941/jrcr.v10i9.2885. eCollection 2016 Sep.
OBJECTIVE
This study investigates the impact of isometric contraction of anterior cervical muscles on cervical lordosis.
METHODS
29 volunteers were randomly assigned to an anterior head translation (n=15) or anterior head flexion (n=14) group. Resting neutral lateral cervical x-rays were compared to x-rays of sustained isometric contraction of the anterior cervical muscles producing anterior head translation or anterior head flexion.
RESULTS
Paired sample t-tests indicate no significant difference between pre and post anterior head translation or anterior head flexion. Analysis of variance suggests that gender and peak force were not associated with change in cervical lordosis. Chamberlain's to atlas plane line angle difference was significantly associated with cervical lordosis difference during anterior head translation (p=0.01).
CONCLUSION
This study shows no evidence that hypertonicity, as seen in muscle spasms, of the muscles responsible for anterior head translation and anterior head flexion have a significant impact on cervical lordosis.
目的
本研究调查颈前肌等长收缩对颈椎前凸的影响。
方法
29名志愿者被随机分为前头部平移组（n = 15）或前头部屈曲组（n = 14）。将静息中立位颈椎侧位X线片与颈前肌持续等长收缩产生前头部平移或前头部屈曲时的X线片进行比较。
结果
配对样本t检验表明，前头部平移或前头部屈曲前后无显著差异。方差分析表明，性别和峰值力与颈椎前凸的变化无关。在前头部平移过程中，钱伯林线与寰椎平面线的角度差与颈椎前凸差显著相关（p = 0.01）。
结论
本研究表明，没有证据表明负责前头部平移和前头部屈曲的肌肉出现如肌肉痉挛时的高张力对颈椎前凸有显著影响。
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