Correlation between Postural Stability and Functional Disability in Patients with Chronic Low Back Pain.

Purpose: To investigate the relationship between static and dynamic postural stability and functional disability associated with chronic low back pain (CLBP). Methods: A total of 80 patients (age 44.64 ± 1.27 years) were recruited in this cross sectional study using convenience sampling. The One Leg Stand Test (OLST) was used to assess static balance with eyes open and eyes closed; Y Balance Test- Lower Quarter (YBT-LQ) was used to assess dynamic balance in the anterior, posterolateral and posteromedial directions; and functional disability was assessed using modified Oswestry Disability Index (mODI). Karl Pearson correlation coefficient was used to estimate the relationship between the variables. Results and Conclusion: mODI was negatively correlated to OLST with eyes closed (r= -0.721); YBTLQ composite score (r= -0.865); and reach distances in the posterolateral (r= -0.815) and posteromedial (r= -0.832) directions suggesting that control of postural stability was reduced with an increase in disability in patients with CLBP. [ABSTRACT FROM AUTHOR]