Patients allocated to this group will receive three different neurodynamic techniques: a lumbar foramen dynamic opener; a side-lying slider and a slider in the slump position. Patients will be asked to perform home exercises (a slider and a tensioner technique). Treatment will receive four treatments during two weeks (two sessions/week).

Patients allocated to Control Group (CG) will receive no intervention and will be advised according to the best evidence available; i.e, advice to remain active and to resume activities of daily living

Upon trial completion, treatment will be offered.

All techniques will be executed in a pain-free way (grade III). Mild discomfort will be accepted, but it must subside as soon as the technique ends.

• In the dynamic opener technique, patient will be positioned in side-lying, with the affected side upwards. The therapist will then perform grade III oscillations aiming to open the lumbar foramen;
• In the side-lying slider, the patient will be in side-lying with the affected side upwards. A combination of knee and hip flexion and extension movements will produce sliding in the neural structures;
• In the slump slider, the patient will be seated in slump position. Combinations between neck and knee movements will produce greater nerve excursion than the side-lying slider. Patients will perform the slump slider in a pain-free manner.

Leg Pain will be measured by a 0-10 Numeric Rating Scale (Pain NRS)

Disability will be measured by the Oswestry Disability Index (ODI)

Leg Pain will me measured by a 0-10 Pain NRS

Disability will be measured by the Oswestry Disability Index (ODI)