Isometric Back Extensor Endurance and Chronic Low Back Pain in University Athletes: A Cross-Sectional Study.

Context: Chronic low back pain (CLBP) is a common problem among university athletes, negatively affecting their performance and overall health. Deconditioned back muscles due to CLBP can reduce endurance. However, there is limited research on CLBP in university athletes, especially comparing those with and without the condition. Additionally, the connection between back muscle endurance and CLBP in university athletes is unclear, and there is insufficient data on normal levels of back muscle endurance. The present study aimed to establish normal back extensor muscle endurance values in university athletes, both with and without CLBP, and to investigate the link between back extensor endurance and CLBP.

Design: Cross-sectional study.

Methods: The study included 90 university-level athletes (45 with CLBP and 45 without CLBP; age: 18-30 y). Athletes underwent assessments on demographics, sports, and CLBP-related factors, as well as the Sorensen test. Appropriate statistical tests were applied to the obtained data.

Results: Results showed a significant difference (P < .001) in Sorensen test holding duration between athletes with and without CLBP. The correlation analysis revealed a significant association (r = -.79, P = .02) between Sorensen test time and CLBP.

Conclusions: University athletes with CLBP exhibit lesser back extensor endurance than those without CLBP. There is a significant association between CLBP and Sorensen test hold time. The study's implications include using the Sorensen test for CLBP prediction and tracking therapeutic advancements in clinical practice.