The purpose of this study of the Thoracic Spinal Exercise Program was to evaluate its effects on VDT workers. These effects were found to include a decrease thoracic kyphosis, increase thoracic spine mobility and decrease in the VAS (visual analog scale). These measures provide a means of assessing the muscle endurance and muscle strength of the subjects.

This study was conducted during the period from July 1 to August 31, 2003, and involved 58 VDT workers belonging to a company located in Seoul who were working seated in front of a computer for most of the day. After applying the thoracic exercise program, we examined the changes in the of thoracic kyphosis angle, spinal length (C7-S3), TFED (thoracic flexibility in the extension direction), MEBH (maximal elevation with both hands in the overhead direction) and CE (chest expansion).

Obtained f om this study are as follows. 1. A significant reduction in the VAS was observed in the exercise group (pre-exercise 5.90 ± 0.88 points, post-exercise 4.23±0.82 points), as compared with the control group (pre-exercise 6.00±0.90 points, post-exercise 5.93±0.81 points). 2. A significant reduction in thoracic kyphosis (pre-exercise 36.97±7.49, post-exercise 31.83±5.90) and a significant increase in thoracic flexibility in the extension direction (pre-exercise 7. 4 7±2.30, post-exercise 11.77±3.65) were observed in the exercise group. The thoracic kyphosis angle showed a significant reduction in the exercise group, as compared to the control group. The thoracic flexibility in the extension direction showed a significant increase in the exercise group, as compared to the control group. 3. There was a significant increase in the spinal length in the exercise group (pre-exercise 49±27.66 mm, post-exercise 518.60±27.95 mm).

The Thoracic Spinal Exercise Program results in an increase in thoracic spine mobility and a decrease in pain. In practical terms, the effects of the exercise program are good health and posture.