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Effects of Sling and Resistance Rotation Exercises on Pelvic Rotation and Pain in Patients with Chronic Low Back Pain
J Kor Phys Ther 2018;30(5):166-172
Published online October 31, 2018;
© 2018 The Korea Society of Physical Therapy.

Dae Hyun Kim, Tea Ho Kim

Department of Physical Therapy, College of Rehabilitation Science, Daegu University, Daegu, Korea
Tea Ho Kim
Received September 13, 2018; Revised October 18, 2018; Accepted October 25, 2018.
This is an Open Access article distribute under the terms of the Creative Commons Attribution Non-commercial License (Http:// which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Purpose: This study compared the different sling and resistance exercises on pelvic rotation during active straight leg raises (ASLR) and on pain in patients with chronic low back pain (CLBP).
Methods: Twenty subjects were divided randomly into a sling group (SG) and a resistance exercise group (REG). Internal oblique (IO), external oblique (EO), rectus abdominis (RA), and rectus femoris (RF) muscle activity; pelvic rotation angle during ASLR; and visual analogue scale, pressure pain threshold were measured. Sling and resistance exercises were then performed for 30 minutes and the measurements taken again.
Results: Both groups showed significantly lower RF muscle activity and significantly higher EO and IO muscle activity (p<0.05). The RA muscle activity decreased significantly in the SG, but increased significantly in the REG (p<0.05). The pelvic rotation angle was significantly lower in the SG (p<0.05). The pain press threshold increased significantly in both groups (p<0.05). The visual analogue scale decreased significantly in the SG (p<0.05).
Conclusion: Both exercises appear to be beneficial for modifying the muscle activity and pain control in the intervention of CLBP. On the other hand, the sling was more effective in increasing the pressure threshold than resistance exercise, and the pelvic rotation angle was reduced. Therefore, both exercises can help patients with CLBP change their muscle activity and control pain. CLBP patients should use a sling for short periods of time to learn to reduce the pain and control pelvic rotation.
Keywords : Active straight leg raising test, Back pain, Pelvic rotation angle, Resistance exercises, Sling exercises

October 2018, 30 (5)
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