Participants received the conventional physiotherapy program plus neurodynamic mobilization administered by a physical therapist. Treatment was given 5 days a week for 4 weeks, for a total of 20 sessions.

Individuals in control group received hot therapy (Hotpack, 20 minutes), Conventional Tens (60 Hz, 60 msec, 20 minutes) and Therapeutic Ultrasound (1.5 w/cm2, 10 minutes). Patients were given an exercise program to do at home and the treatment was given 5 days a week for 4 weeks, for a total of 20 sessions, to all patients in the study.

In the experimental group, neurodynamic mobilization was applied in addition to the conventional physiotherapy program. For the neurodynamic mobilization tibial nerve neural mobilization was performed. For neural mobilization of the tibial nerve, the patient was placed in the side-lying position with the hip in 90° flexion, knee flexion and ankle dorsi flexion. In this position, the ankle and hip positions were maintained, and knee extension was performed. When the symptoms were at a level that would not disturb the patient, it was held for 5 seconds, and knee flexion was performed by plantar flexion of the ankle. This practice was performed twice a week with 10 repetitions by a physiotherapist. The same neurodynamic mobilization exercise was recommended to the patients in the neuromobilization group as a home program with 10 repetitions twice a day.

Patients' rest and activity pain levels was assessed via a visual analog scale (VAS). Participants were asked to mark the intensity of pain they felt on a 10-centimeter (cm) horizontal line (0 indicates no pain, 10 indicates intolerable pain). The point marked on the line was measured with a ruler and the VAS value was recorded in cm

Rom of the lumbar region was evaluated using a universal goniometer. Lumbar flexion and extension, right and left lateral trunk flexion were measured actively and recorded in terms of degree.