METHODS: MV and MFI at spinal segments C4 through C7 in both sexes with mild- to moderate chronic WAD (n = 20), severe chronic WAD (n = 10), and age- and sex matched healthy controls (n = 30) was compared. Muscles: trapezius, splenius, semispinalis capitis and semispinalis cervicis were segmented by a blinded assessor and analyzed.
RESULTS: Higher MFI was found in right trapezius (p = 0.007, Cohen\'s d = 0.9) among participants with severe chronic WAD compared to healthy controls. No other significant difference was found for MFI (p = 0.22-0.95) or MV (p = 0.20-0.76).
CONCLUSIONS: There are quantifiable changes in muscle composition of right trapezius on the side of dominant pain and/or symptoms, among participants with severe chronic WAD. No other statistically significant differences were shown for MFI or MV. These findings add knowledge of the association between MFI, muscle size and self-reported neck disability in chronic WAD.
BACKGROUND: NA. This is a cross-sectional case-control embedded in a cohort study.
方法:在轻度至中度慢性WAD(n=20)的两性脊柱C4至C7节段的MV和MFI,重度慢性WAD(n=10),并比较年龄和性别匹配的健康对照(n=30)。肌肉:斜方肌,脾,头半肌炎和宫颈半肌由盲法评估者进行分割和分析。
结果:在患有严重慢性WAD的参与者中,与健康对照组相比,在右斜方肌中发现了更高的MFI(p=0.007,Cohen'sd=0.9)。MFI(p=0.22-0.95)或MV(p=0.20-0.76)没有其他显着差异。
结论:在显性疼痛和/或症状的一侧,右斜方肌的肌肉成分有可量化的变化,在患有严重慢性WAD的参与者中。MFI或MV没有显示其他统计学上的显著差异。这些发现增加了对MFI,慢性WAD患者的肌肉大小和自我报告的颈部残疾。
背景:NA。这是一项纳入队列研究的横断面病例对照。