Long-term impact of self-compassion training with core stability exercise on patients with nonspecific chronic low back pain: A randomized controlled trial

Objective To compare the long-term effectiveness of self-compassion therapy (SCT) combined with core stability exercise (CSE) versus CSE alone in managing nonspecific chronic low back pain (NCLBP). Methods The combined group received SCT and CSE, while the exercise group only received CSE. Treatment was administered once weekly for four weeks, followed by one year of follow-up. The primary outcomes were changes in functional limitations (measured by Roland and Morris Disability Questionnaire scores[RMDQ]) and self-reported back pain (measured by the Numeric Pain Rating Scale[NRS]) at 52 weeks, with assessments also conducted at 2, 4, and 16 weeks. Results 52 (83.9%) completed the follow-up assessments and were included in the analysis (42 women [80.8%]; mean [SD] age,35.3 [10.0] years). In the combined group, the baseline mean (SD) RMDQ score was 9.3 (4.1),5.7 (5.8) at 2 weeks, 3.8 (3.4) at 4 weeks, 3.8 (3.7) at 16 weeks, and 2.4 (2.7) at 52 weeks. For the exercise group, the RMDQ scores were 8.2 (3.3) at baseline, 6.2 (4.2) at 2 weeks, 5.5 (4.7) at 4 weeks, 4.4 (4.5) at 16 weeks, and 5.2 (5.6) at 52 weeks. The estimated mean difference between the groups at 52 weeks was −3.356 points (95% CI, −5.835 to −0.878; P = 0.009), favoring the combined group. NRS scores showed similar changes. Conclusion The addition of self-compassion therapy enhances the long-term efficacy of core stability training for NCLBP (Preregistered at chictr.org.cn:ChiCTR2100042810).