An Analysis of the Effectiveness of Strengthening or Stretching Exercises in Patients Performing Prolonged Sedentary Work with Non-Specific Lower Back Pain.

Background: Non-specific LBP refers to back pain which arises from the spine, intervertebral discs and surrounding soft tissues in the absence of pathologic lesions. Most cases of non-specific LBP are not the result of a single injury from a high load, but the result of repetitive, cumulative micro-injuries. The aim of the study was to assess the effectiveness of strengthening, stretching and mixed exercises in patients with non-specific LBP and their impact on pain intensity.