Iqbal Zaheen Ahmed, Rajan Reena, Khan Sohrab Ahmed, Alghadir Ahmad H
Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University: Riyadh, Saudi Arabia.
J Phys Ther Sci. 2013 Jun;25(6):657-61. doi: 10.1589/jpts.25.657. Epub 2013 Jul 23.
[Purpose] The job of secondary school teachers involves a lot of head down posture as frequent reading, assignment correction, computer use and writing on a board put them at risk of developing occupational related neck pain. Available studies of neck pain experienced by teachers are limited. The purpose of this study was to determine whether training of deep cervical flexor muscles with pressure biofeedback has any significant advantage over conventional training for pain and disability experienced by school teachers with neck pain. [Subjects] Thirty teachers aged 25-45 years with neck pain and poor craniocervical flexion test participated in this study. [Methods] A pretest posttest experimental group design was used in which experimental group has received training with pressure biofeedback and conventional exercises while control group received conventional exercises only. Measurements of dependent variables were taken at baseline, and after 2 and 4 weeks of training. Pain intensity was assessed using a numeric pain rating scale and functional disability was assessed using the neck disability index. [Results] The data analysis revealed that there was significant improvement in pain and disability in both the groups and the results were better in the experimental group. [Conclusion] Addition of pressure biofeedback for deep cervical flexor muscles training gave a better result than conventional exercises alone. Feedback helps motor learning which is the set of processes associated with practice or experience leading to permanent changes in ability to respond.
[目的]中学教师的工作涉及大量低头姿势，频繁阅读、批改作业、使用电脑以及在黑板上书写使他们面临患职业性颈部疼痛的风险。现有的关于教师颈部疼痛的研究有限。本研究的目的是确定使用压力生物反馈训练颈深屈肌是否比传统训练对患有颈部疼痛的学校教师的疼痛和功能障碍有显著优势。[受试者]30名年龄在25 - 45岁之间、患有颈部疼痛且颅颈屈曲试验不佳的教师参与了本研究。[方法]采用前测后测实验组设计，其中实验组接受压力生物反馈训练和传统锻炼，而对照组仅接受传统锻炼。在基线以及训练2周和4周后对因变量进行测量。使用数字疼痛评分量表评估疼痛强度，使用颈部功能障碍指数评估功能障碍。[结果]数据分析显示两组的疼痛和功能障碍均有显著改善，且实验组的结果更好。[结论]在颈深屈肌训练中加入压力生物反馈比单独进行传统锻炼效果更好。反馈有助于运动学习，运动学习是与练习或经验相关的一组过程，会导致反应能力的永久性变化。
