In the side lying position, lumbar chiropractic manipulation will be performed over the transverse process of the vertebra thought to have vertebral subluxation. A total of 8 sessions of chiropractic manipulation will be performed 2 times a week.

Participants in the groups receiving DNS exercise therapy will be given individualized exercises under the supervision of a physiotherapist. Firstly, the participants will be taught the skill of posterior diaphragm activation in the supine position and the ability to direct the intra-abdominal pressure caudally, while preventing the cranial movement of the thorax, so that the chest and pelvis are in a neutral position and the thoracic diaphragm and pelvis are aligned in parallel. Our aim in this alignment is that with the correct diaphragm movement pattern, the deep stabilizers will be activated as a reflex response to intra-abdominal pressure change. Participants will be asked to focus on and maintain this alignment throughout the entire DNS exercise pattern. Exercises will be done 2 times a week for 50 minutes for 4 weeks.

This group receives a treatment as a combination of the treatments described above.

Participants in the groups receiving DNS will be asked to hold the lower leg in the side lying position with the lower leg in the extended position and to clamp the upper leg to the lower leg with hip and knee flexion. During the application, the HLVA technique will be applied once by positioning the hypothenar part of the physiotherapist's hand on the transverse process of the lumbar vertebra where tenderness is felt by palpation and vertebral subluxation is thought to be present.

The pain level of the patients will be measured with this scale. The length of the distance from the starting point of no pain to the location marked by the patient indicates the patient's pain numerically. Pain scoring according to the visual analog scale is usually graded with 0 points as no pain and 10 points as the worst pain imaginable.

The Roland Morris Disability Questionnaire will be used to assess this parameter. This questionnaire is a subjective assessment method that evaluates the level of physical competence of individuals. The questionnaire consists of 24 items that are answered

The Oswetry Disability Index will be used to assess the extent to which individuals' low back pain affects their daily lives and the functional status of the individual. The questionnaire, which consists of 10 questions in total, includes 6 options for each question, the options are scored between 0-5 and the sum of the scores is divided into 5 classes according to the percentile obtained by taking the percentage of the maximum score of the questionnaire.

DNS-HS Dynamic Neuromuscular Stabilization - Heel Sliding Test will be used to measure the dynamic stabilization and adaptation level of the participants. The DNS-HS test is useful to objectively measure the dynamic adaptability of core muscles and aid in early diagnosis. It is a promising test that provides objective data that can be used to dynamically assess stabilization ability.