Investigation of Factors Associated with Pain Level in Individuals with Chronic Non-Specific Low Back Pain

Objectives: The aim of this study was to investigate the factors associated with pain levels in individuals with chronic non-specific low back pain (CSLBP). Material and Methods: A total of 90 patients (44 males and 46 females) diagnosed with CS LBP were included in the study. Pain level was assessed by the Visual Analogue Scale (VAS), body balance was assessed statically and dynamically by the Biodex Stability System, quadriceps femoris muscle strength was assessed by an isometric dynamometer, and disability level was assessed by the Oswestry Disability Index (ODI). A linear regression analysis was performed to determine the factors affecting pain level. Results: According to the results of linear regression analysis, static balance (anteroposterior, mediolateral, and general), dynamic balance (anteroposterior, mediolateral, and general), ODI, and quadriceps femoris muscle strength (left, right) explained 98.1% of the variance. In addition, all sub-parameters of dynamic balance (general p=0.000, anteroposterior p=0.001, mediolateral p=0.008) and ODI (p=0.000) were independent predictors of pain level. Conclusion: It was determined that pain level was associated with balance, muscle strength (quadriceps femoris), and disability level in individuals with CSBP. It was also observed that dynamic balance and ODI were factors affecting the pain level.