Blind Needling Accuracy in Lumbar Muscles

"* All interventions will be performed by a physical medicine and rehabilitation specialist with clinical experience.~* Targeted muscles:~* \*Iliocostalis lumborum (ICL)\*~* \*Longissimus thoracis (LT)\*~* \*Multifidus (M)\*~* Interventions will be performed from the right side, between the L2-L5 levels.~* A total of \*three different dry needling applications\* will be performed for these three muscles for each participant."

\*All interventions will be performed by a physical medicine and rehabilitation specialist with clinical experience. \* Targeted muscles: \* \*Iliocostalis lumborum (ICL)\* \* \*Longissimus thoracis (LT)\* \* \*Multifidus (M)\* \* Interventions will be performed from the right side, between the L2-L5 levels. \* A total of \*three different dry needling applications\* will be performed for these three muscles for each participant. After each intervention, the needle tip position will be evaluated by a second specialist with \*high-resolution linear probe ultrasound\*.