深度颈屈肌训练对学校教师颈部疼痛、功能障碍和肌肉耐力的疗效：一项临床试验。
Efficacy of Deep Cervical Flexor Muscle Training on Neck Pain, Functional Disability, and Muscle Endurance in School Teachers: A Clinical Trial.
机构信息
Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Department of Health and Physical Education, The Education University of Hong Kong, Tai Po, Hong Kong.
出版信息
Biomed Res Int. 2021 Jan 13;2021:7190808. doi: 10.1155/2021/7190808. eCollection 2021.
BACKGROUND
Neck pain (NP) is a common work-related disorder, with high prevalence in the profession of teaching. The daily duties of a school teacher involve head-down postures while reading and writing, which expose them to the risk of developing NP. Deep cervical flexor (DCF) muscles have been reported to have lower endurance in patients with cervical impairment, which has additionally been associated with disability. There is limited evidence regarding the efficacy of training of DCF muscles in occupational NP. The objective of this study was to investigate the effects of DCF muscle training on pain, muscle endurance, and functional disability using pressure biofeedback in school teachers with NP.
METHODS
Sixty-five teachers (age, 25-45 years) with more than 5 years of teaching experience participated in this study. They were randomly divided into two groups: the experimental (E) and control (C) groups. In the E group, the subjects underwent DCF muscle training using pressure biofeedback in addition to conventional exercises for neck pain, while those in the C group underwent conventional exercises only. Pain, muscle endurance, and disability were measured at day 0 (before the treatment) and days 14 and 42 after the treatment. Endurance of DCF muscles was measured by the craniocervical flexion test using pressure biofeedback, pain intensity was measured using the numeric pain rating scale, and functional disability was assessed using the neck disability index questionnaire. This study was performed in accordance with CONSORT guidelines.
RESULTS
On day 0, there were no significant differences in the age, pain, muscle endurance, and disability levels between the groups. After initiating the intervention, although there were improvements in both groups, there was a statistically significant improvement in muscle endurance, pain, and disability in subjects who received additional training with pressure biofeedback.
CONCLUSIONS
Besides increasing muscle endurance, specific training of DCF muscles in addition to conventional exercises can improve neck pain and functional disability. These results should be further correlated clinically. A dedicated time for exercises at school could help prevent the development of NP in teachers. This trial is registered with ClinicalTrials.gov NCT03537300 May 24, 2018 (retrospectively registered).
背景
颈部疼痛（NP）是一种常见的与工作相关的疾病，在教师职业中发病率很高。学校教师的日常工作包括低头阅读和书写，这使他们面临患 NP 的风险。已有研究报道，颈椎损伤患者的深层颈屈肌（DCF）耐力较低，这与残疾有关。关于 DCF 肌肉训练对职业性 NP 的疗效的证据有限。本研究旨在通过压力生物反馈研究 DCF 肌肉训练对 NP 教师的疼痛、肌肉耐力和功能障碍的影响。
方法
65 名（年龄 25-45 岁）具有 5 年以上教学经验的教师参与了本研究。他们被随机分为两组：实验组（E 组）和对照组（C 组）。E 组在接受常规颈部疼痛运动的同时，还采用压力生物反馈进行 DCF 肌肉训练，而 C 组仅接受常规运动。在治疗前（第 0 天）和治疗后 14 天和 42 天，测量疼痛、肌肉耐力和功能障碍。通过压力生物反馈的颅颈屈曲试验测量 DCF 肌肉耐力，使用数字疼痛评分量表测量疼痛强度，使用颈部残疾指数问卷评估功能障碍。本研究按照 CONSORT 指南进行。
结果
第 0 天，两组的年龄、疼痛、肌肉耐力和功能障碍水平无显著差异。在开始干预后，尽管两组都有改善，但接受压力生物反馈的附加训练的患者在肌肉耐力、疼痛和功能障碍方面有显著改善。
结论
除了增加肌肉耐力外，常规运动之外的 DCF 肌肉专项训练还可以改善颈部疼痛和功能障碍。这些结果应在临床上进一步关联。在学校专门安排时间进行锻炼有助于预防教师 NP 的发生。本试验于 2018 年 5 月 24 日在 ClinicalTrials.gov 注册（回溯注册），注册号为 NCT03537300。
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