11 participates will receive IASTM treatment for total of 40 more seconds.

11 participates will receive total of thirty seconds, divided into three sets of stretches at each intervention, with ten seconds of rest in between.

instrument will be held at 45° angle and the IASTM treatment will be administered for about 20 seconds in a direction parallel to the muscle fibers being treated with deep strokes

The Oswestry disability index (ODI), which is frequently used to evaluate reported limitations in individuals with low back pain, was employed to measure the disability index. It has two items about pain and eight items about activities of daily life. Each item has a point value between 0 and 5. The disability index increases with the overall score, which is represented as a percentage. A revised scale with nine items was utilized since it was determined that the sex life-related questions on the tenth item were inappropriate for persons of Korean descent. This test's test-retest reliability was ICC=0.85-0.94, and its intra-rater reliability was ICC=0.81-0.90.

The score for each item ranges from 0 to 10, measured in units of length up to the location where the patient indicated the level of pain. NPRS is known to have a high sensitivity to pain and is proportional to the pain. This is the most widely used measurement method for chronic pain as well as acute pain with a good reliability.

Inclinometers are a commonly used instrument in clinical practice. The recordings from digital inclinometers could be more objective. Given its non-invasive nature, ease of use, and utility in evaluating lumbar or thoracolumbar range of motion. Inter-rater: ICC = 0.60, test-retest: r = 0.13-0.87.