Purpose: The purpose of this study was to examine the changes caused by lumbar stabilization exercises in chronic low back pain patients.

Subjects and Methods: Swiss ball exercise regimen group and sling exercise regimen group exercised for 30 minutes a day, 5 days a week, for 12 weeks.

The control group was to continue performing their usual daily living activities.

Results: We obtained significant results in both the Swiss ball and sling exercise groups, but not in the control group. The best effect was obtained in the sling exercise group.

Conclusion: The Oswestry Low Back Pain Disability Index and visual pain scale scores of the patients with low back pain decreased in both the Swiss ball exercise group and the sling exercise group, and these patients experienced an increase in waist isometric muscular strength after 12 weeks of exercise compared with those doing no exercise (the control group).

Key words: Lumbar stabilizing, Sling exercise, Chronic back pain