Detethering exercises will be performed for participants with adolescent idiopathic scoliosis.

The Schroth Best Practice program, which is widely used in the conservative treatment of scoliosis, consists of 6 modules including physiological exercises to correct the sagittal plane, activities of daily living, 3D correction techniques, powerful Schroth exercises, de-tethering exercises and gait rehabilitation. Detethering exercises in this program will be performed in this study.

Measurement of the angle/degree of trunk rotation is the most appropriate method for the clinical evaluation of scoliosis. ATR can be used to monitor the effects of treatment without radiographic evaluation. ATR is measured using a special inclinometer called a scoliometer. The patient is asked to lean forward with arms relaxed. The scoliometer is placed on the back and the degree observed at each point of maximum gibbosity is recorded.

Intramuscular mechanical properties can be measured with the MyotonPRO device (Myoton Ltd., Estonia), a new diagnostic evaluation method, which measures intramuscular tension or resting muscle tone, muscle compliance, and muscle elasticity. In this study, it was shown that in conditions where electromyographic measurements are not possible, MyotonPRO measurements (viscoelastic and biomechanical properties) are used as an alternative to muscle strength and activation. The device is held upright and downward pressure is applied. When the red light on the plexiglass frame of the device probe turns green, the pressure application is stopped and the device is held stationary until 5 strokes are performed. Standard stroke intervals are used in all evaluations. During the application, care is taken to move the device and maintain the correct position. Measurements will be repeated 3 times and averaged.