[Purpose] This study was conducted to quantify the effect of sling exercise therapy in
the recovery of lumbosacral sagittal alignment (LSA) and in the control of low back pain.
[Subjects and Methods] A total of 102 chronic low back pain patients were divided into two
groups, a physical therapy group and a sling exercise group. In both groups, programs were
conducted thrice a week for twelve weeks. With respect to LSA, pelvic tilt (PT), sacral
slope (SS), and pelvic incidence (PI) were measured with plain radiography. Pain was
measured on a visual analogue scale (VAS). [Results] Differences were found in visual
analogue scale, delta score of visual analogue scale, pelvic tilt, delta score of pelvic
tilt, and delta score of pelvic incidence between sling exercise therapy and physical
therapy groups. VAS, pelvic tilt, and pelvic incidence was positively changed after sling
exercise. However, only the visual analogue scale was found to be improved after physical
therapy. [Conclusion] Sling exercise therapy and physical therapy were effective in
reducing pain. However, pelvic tilt and pelvic incidence were positively changed after
sling exercise therapy for Lumbosacral Sagittal Alignment, but were unchanged after
physical therapy. Therefore, sling exercise therapy is more effective than physical
therapy for the recovery of Lumbosacral Sagittal Alignment in patients with chronic low
back pain.