Shin Seung-Je, Yoo Won-Gyu
Department of Physical Therapy, The Graduate School, Inje University, Gyeongsangnam-do, Korea.
Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Gyeongsangnam-do, Korea.
Work. 2014;47(2):261-5. doi: 10.3233/WOR-121580.
The static posture in visual display terminal (VDT) workers results in increased forward neck flexion and increased static muscle tension in the neck and shoulder regions. However, few studies have objectively quantified the change in head posture induced shoulder pain during VDT work.
This study elucidated changes in pressure pain in the upper trapezius muscles, cervical ROM, and the cervical flexion--relaxation ratio after continuous long-term VDT work.
Twelve young VDT workers were recruited.
The pressure pain of the upper trapezius muscles, active CROM, and cervical flexion--relaxation ratio were measured in all subjects once before and once after VDT work.
The pressure pain threshold of the right upper trapezius muscle was 6.9 ± 1.6 lb before VDT work and 6.1 ± 1.0 lb after VDT work, revealing a significant increase with VDT work. The cervical extension, left and right lateral flexion, and left rotation measurers decreased significantly with VDT work.
We postulate that even short-term VDT work has the potential to cause problems. It is necessary to develop a CROM self-measuring device and to monitor patients' musculoskeletal changes frequently.
视屏显示终端（VDT）工作者的静态姿势会导致颈部前屈增加以及颈部和肩部区域的静态肌肉张力增加。然而，很少有研究客观地量化VDT工作期间头部姿势变化引起的肩部疼痛。
本研究阐明了长期持续VDT工作后斜方肌上部的压痛、颈椎活动度（ROM）以及颈椎屈伸比值的变化。
招募了12名年轻的VDT工作者。
在所有受试者VDT工作前后各测量一次斜方肌上部的压痛、主动颈椎活动度（CROM）和颈椎屈伸比值。
VDT工作前右侧斜方肌上部的压痛阈值为6.9±1.6磅，VDT工作后为6.1±1.0磅，显示VDT工作后有显著增加。颈椎后伸、左右侧屈和左旋测量值在VDT工作后显著下降。
我们推测即使是短期的VDT工作也有可能引发问题。有必要开发一种CROM自我测量装置并经常监测患者的肌肉骨骼变化。
