Investigating the effect of adding pain neuroscience education to stabilization exercises using a flexi-bar on pain, disability, abdominal and multifidus muscles geometry in patients with chronic non-specific low back pain.

Investigating the effect of adding pain neuroscience education to stabilization exercises using a flexi-bar on pain, disability, abdominal and multifidus muscle geometry in patients with chronic non-specific low back pain.

A clinical trial with a control group, with parallel groups, double-blind, randomized, 26 patients in each group, randomization by permutation blocks.

Both groups of patients will receive their treatment at the Shiraz Rehabilitation Faculty clinic. In the control group, patients will be given stabilization exercises with flexi-bars, and In addition to this, PNE training will also be provided to the patients in the experimental group .Patients and co-evaluators will be blinded in the study.

Inclusion criteria: Age group between 20 and 50 years of both sexes if more than 3 months have passed since the onset of symptoms, Average pain intensity between 3-7, minimum education level of diploma, Disability level greater than 8 . exclusion criteria: A history of malignancy in the area of the lumbar spine and its metastasis to any area, Systemic or local infections, History of inflammatory and systemic diseases, Presence of structural disorders of the spine, History of neurological diseases and brain damage, History of lower limb, abdominal and lumbar surgeries, Pregnancy, History of physiotherapy treatments and participation in regular sports exercises in the last three months, Musculoskeletal and orthopedic disorders of the limbs

In the control group, patients will receive stabilization exercises with flexi bar, and in the experimental group, in addition to this, patients will also receive pain neuroscience education training.

Pain, disability, geometry of abdominal muscles and multifidus muscle, fear of movement, fear-avoidance beliefs, pain catastrophizing

Considering that at the time of registration of the trial, we did not have an accurate prediction of the time of judging and acceptance of the trial, our expected time to start accepting patients was before the date of approval and registration of the code, therefore, we request to change the start time of accepting patients from 31 May 2023 to 17June 2023 we have Subsequently, the end time of sick leave will be changed to 17January 2024

The randomization method used was permutation block method. (considering blocks of four with the number of 13 blocks)

A physiotherapist applies the interventions and another physiotherapist colleague, who is unaware of the patient grouping, performs the evaluations. Also, the participants of the two groups will be treated in a separate place where they will not have any contact with each other.