The Application of Postural Correction Biofeedback Training for Clients with Mechanical Neck Pain

• Main Authors: Yen-Cheng Lee, 李彥成
• Other Authors: Lan-Yuen Guo
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/98611771532436515719

碩士 === 高雄醫學大學 === 運動醫學系碩士班 === 101 === Background: In recent years, mechanical neck pain (MNP) has become a widespread musculoskeletal disorder. The issue that it results in increasing the requirements of medical resource and economic burden should not be underestimated. Many studies suggested that people maintain static and poor neck posture for a long time may cause neck pain. Some researches have used postural exercise to train client with neck pain and found its positive effect. However, to our knowledge, few studies combined postural correction and visual/auditory biofeedback to train subjects with neck pain, and evaluated the improvement of sensorimotor function in six cervical movements (flexion/extension, right/left rotation, right/left side-bending) and self-estimated clinical symptoms. Purposes: To investigate the effects of postural correction biofeedback training on clinical symptoms for Clients with MNP. Methods: Twenty subjects with MNP were divided into control and training group randomly. Control group were instructed to do active cervical range of motion for placebo. Training group carried out postural correction biofeedback exercise for one trial an hour, total four hours training in a week. The changes of subjective parameters were assessed by related questionnaires before and after training. Objective parameters were evaluated by 6 degrees of freedom electromagnetic tracking system for head position in six cervical movements and calculated by Matlab for reposition error, including absolute error and variable error, movement unit, peak angular velocity, the percentage of time to peak angular velocity, and max range of motion before and after training. Furthermore, this present study investigated the association between the improvement of subjective and objective parameters, and determined the key factor that affected the change of objective parameters. Results: In subjective parameters, subjects who were intervened postural correction biofeedback training showed that the index of fear-avoidance belief questionnaire (FABQ) improved significantly (p<0.05). In objective parameters, reposition absolute error was improved significantly for training group in cervical flexion, extension, rotation to right and side-bending to left (p<0.05); reposition variable error was improved significantly for training group in cervical flexion, extension and rotation to left (p<0.05). The number of movement unit was significant decreased for control group in cervical extension, rotation to right and left (p<0.05). Maximum range of motion (ROM) was significant decreased for control group in cervical rotation to right (p<0.05). Besides, the improvement of reposition absolute error was positive correlates to the improvement of pain intensity, and it could explain 68% of variation of the improvement of pain intensity; the improvement of maximum ROM was negative correlates to the improvement of FABQ physical part, and it could explain 46% of variation of the improvement of FABQ physical part for training group. Conclusion: Postural correction biofeedback training could improve the sensorimotor function and further affect the clinical symptom of clients with MNP.