McKenzie Derangement Syndrome

The aim of the study is to investigate the effect of performing combined lumbar traction and repeated back extension exercise (McKenzie) on soleus H-reflex, pain, and disability in patients with lumbosacral radiculopathy. The main question that it aims to answer is: Does the combination of lumbar traction and back extension exercise (McKenzie) improves soleus H-reflex, pain, and function in patient with lumbosacral radiculopathy? participants will be randomized into 2 groups: one group will include repeated back extension exercise (McKenzie Approach) without mechanical traction and the other group will include the same but in combination with mechanical traction.