Acute Effect of Instrument-Assisted Soft Tissue Mobilization on Hamstring Flexibility Via Fascial Chain

Instrument assisted soft tissue mobilization (IASTM) is one of the methods used to achieve fascial release. In this study, it will be examined whether there will be an increase in hamstring flexibility by releasing the superficial posterior fascial chain as a result of the IASTM technique to be applied over the triceps surae muscle and plantar fascia. Sociodemographic information of individuals who meet the inclusion criteria and volunteer to participate in the study will be obtained, and straight leg lift test and popliteal angle measurement will be performed with the digital inclinometer (Baseline Digital Inclinometer) to be provided within the scope of the project to measure hamstring flexibility. Then, IASTM will be applied to the triceps surae muscle and plantar fascia for 15 minutes. Measurements will be repeated after the application.

Inclusion Criteria:Healthy individuals with a straight leg lift test less than 80° and a popliteal angle greater than 15° will be included in the study.Exclusion Criteria:Individuals with a history of lower extremity fractures, lumbar disc herniation, acute pain, a history of lesion in the hamstring muscles at least 1 month before the study, knee or hip prosthesis, and those using drugs that may affect the measurements (e.g., muscle relaxants) will not be included in the study.