Characteristics of Surface Electromyograph Activity of Cervical Extensors and Flexors in Nonspecific Neck Pain Patients: A Cross-Sectional Study.
Characteristics of Surface Electromyograph Activity of Cervical Extensors and Flexors in Nonspecific Neck Pain Patients: A Cross-Sectional Study.
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DOI：
10.3390/medicina58121770
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发表时间：
2022-11-30
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背景和目的：我们确定了健康成人在三个解剖平面运动时颈部伸肌和屈肌的典型表面肌电图（sEMG）活动。本研究的目的是探讨以健康成人为基础的非特异性颈痛（NSNP）患者这些颈部肌肉的肌电活动特征。材料与方法：研究对象为24例NSNP患者（NSNP组，平均±SD年龄为47.5±15.5）和24例健康成人（对照组，20.5±1.4）。在第一阶段（颈部从中立位到最大活动范围）、第二阶段（最大活动范围）和第三阶段（从最大活动范围到中立位）中，记录每位参与者在颈部屈曲、伸展、双侧侧屈、双侧旋转和中立位时的颈伸肌和屈肌肌电图，共42个阶段。计算使每个阶段肌肉活动正常化的最大自愿收缩百分比，以获得36个运动阶段中每个阶段伸肌和屈肌的肌肉活动与中性位置的比例，以及21个阶段中屈肌和伸肌活动的比例。结果：在36个运动相中，有28个阶段，NSNP组伸屈肌与中性位的肌肉活动量之比显著大于对照组（p < 0.05）。在21个阶段中，NSNP组有6个阶段的屈伸肌活动比显著大于对照组（p < 0.05）。结论：在NSNP患者中，与颈部运动相关的颈伸肌和屈肌的活动增加，与健康成人相比，这些肌肉之间的活动不平衡。本研究结果将有助于了解NSNP的发病机制，并对NSNP患者的治疗效果进行客观评价。
Background and Objectives: We identified typical surface electromyogram (sEMG) activities of the cervical extensors and flexors during motions in the three anatomical planes in healthy adults. The aim of this study was to explore characteristics of sEMG activities of these cervical muscles in nonspecific neck pain (NSNP) patients based on healthy adults. Materials and Methods: Participants were 24 NSNP patients (NSNP group, mean ± SD of age, 47.5 ± 15.5) and 24 healthy adults (control group, 20.5 ± 1.4). For each participant, sEMG of the cervical extensors and flexors was recorded during neck flexion, extension, bilateral lateral flexion, bilateral rotation, and at the neutral position in Phase I (the neck from the neutral position to the maximum range of motion), Phase II (at the maximum range of motion), and Phase III (from the maximum range of motion to the neutral position), yielding a total of 42 phases. A percentage of maximum voluntary contraction to normalize muscle activity in each phase was calculated to obtain the ratio of muscle activities in the extensors and flexors in each of 36 phases of the motions to the neutral position and ratio of the flexors to extensors in activity for 21 phases. Results: In 28 of 36 phases of the motions, the ratios of muscle activities in the extensors and flexors to the neutral position in the NSNP group were significantly larger than the control group (p < 0.05). In 6 of 21 phases, the ratios of the flexors to extensors in activity in the NSNP group were significantly larger than in the control group (p < 0.05). Conclusions: In NSNP patients, the activity of the cervical extensors and flexors associated with neck motion increased with an imbalance in activity between these muscles compared to their activity in healthy adults. The results of this study will be useful in understanding the pathogenesis of NSNP and in constructing an objective evaluation of the treatment efficacy on NSNP patients.
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影响因子：
--
作者：
Burnett, AF;Cornelius, MW;O'Sullivan, PB
通讯作者：
O'Sullivan, PB
影响因子：
3.2
作者：
Falla, Deborah;Jull, Gwendolen;Hodges, Paul
通讯作者：
Hodges, Paul
影响因子：
2.5
作者：
Farahpour, Nader;Ghasemi, Safoura;Saba, Mohammad Sadegh
通讯作者：
Saba, Mohammad Sadegh
影响因子：
3
作者：
Dankaerts, W;O'Sullivan, P;Straker, LM
通讯作者：
Straker, LM
影响因子：
3
作者：
Falla, DL;Jull, GA;Hodges, PW
通讯作者：
Hodges, PW