In the first 2 weeks, sessions were held with all patients once a week. In these two sessions, the basic information of scoliosis were explained to both groups. Postural corrections were explained to the patients, including the basic elements of clinical pilates.It was stated that they should breathe towards the concave side of the major curve (weak breathing zone) during exercises and postural corrections.In the Pilates-based exercise program, sessions are planned as 10 minutes of warm-up, 10 minutes of cool-down and 40 minutes of scoliosis-specific pilates-based exercises for approximately 1 hour. Total number of exercises is 12 for one session. After a 2-week joint training week, the training group switched to hybrid type telerehabilitation and continued their exercise sessions with a physiotherapist 3 days a week via synchronous video conferences (Zoom Application) and by themselves at home on the rest of the week.

In the first 2 weeks, sessions were held with all patients once a week. In these two sessions, the basic information of scoliosis were explained to both groups. Postural corrections were explained to the patients, including the basic elements of clinical pilates. It was stated that they should breathe towards the concave side of the major curve (weak breathing zone) during exercises and postural corrections.In the Pilates-based exercise program, sessions are planned as 10 minutes of warm-up, 10 minutes of cool-down and 40 minutes of scoliosis-specific pilates-based exercises for approximately 1 hour. Total number of exercises is 12 for one session.The patients in the control group continued the exercise program every day of the week for 12 weeks. Exercise lists were sent to the patients in the form of electronic booklets via an electronic communication application every week, and their continuity with the exercise program was checked with the diaries they were asked to fill in.

Sessions are consisted of scoliosis-specific pilates-based exercises.The exercises were kept constant in total content, but the bilateral or unilateral application directions, the number of repetitions for the right and left sides, and the extremities used were modified for each patient according to the localization of the major curve and the type of the curve. The taught postural corrections were requested to be maintained during all exercises. Exercises for flexibility were performed asymmetrically or symmetrically according to the chosen exercise, extremities were chosen according to the curve type, with 5 repetitions and 30 seconds for each repetition. Exercises aimed at strengthening were performed for a total of 12 repetitions, during a 5-second contraction, by arranging the number of repetitions for the right and left in line with the target muscles, again considering the curve type, and the patients were asked to rest between the exercises.

When measuring the Cobb angle, the tangent lines on the radiological film are drawn from the superior end plate of the superior vertebra participating in the curvature and the inferior endplate of the lowest vertebra participating in the curvature. The angle formed at the intersection of these two lines is the Cobb angle. The evaluation was performed by the same physician before and after the treatment.

Spirometry device was used in the evaluation of lung functions and measurements were carried out in accordance with ATS/ERS criteria. Before the test, the weight, height, age and gender values of the patients were recorded on the spirometer device. All of the measurements were made in the sitting position with the feet in full contact with the ground. A nose clip was used. At the beginning of the test, inspiration and expiration were requested at the tidal volume limits. Afterwards, rapid expiration was requested following the deepest possible inspiration. Care was taken to maintain the expiration time for 6 seconds without interruption. It was recorded by choosing the best of three tests that were 95% consistent with each other. Forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), Tiffeneau ratio (FEV1/FVC) and peak expiratory volume (PEF) values were measured and both measured values and percentages of expected values were recorded.

Respiratory muscle strength was measured in accordance with ATS/ERS criteria using an electronic and portable intraoral pressure measuring device.All of the measurements were made in the sitting position with the feet in full contact with the ground. Nasal breathing was blocked with a nose clip. In order to measure the maximum inspiratory pressure (MIP), maximum expiratory maneuver was performed before the patient took the mouthpiece of the device into his mouth, and then maximal inspiration (Müller maneuver) was performed at maximum speed for 1-3 seconds. For maximum expiratory pressure measurement, the maximum inspiratory maneuver was performed before the mouthpiece of the device was taken into the mouth, and then maximal expiration (Valsalva maneuver) was performed at maximum speed for 1-3 seconds. 3 measurements were repeated for each evaluation and the highest value was recorded in "cmH2O".