Effect of a Brace on the Adolescent Idiopathic Scoliosis Breathing

This study intends to investigate the effect of bracing on respiratory function in the treatment of adolescent idiopathic scoliosis (AIS). In particular, it will look at the effect of the brace on respiratory function and 3D volume of the thoracic cage. An additional evaluation of the pressure forces of the brace, using a connected t-shirt, will be carried out. The investigators hypothesise that the brace will decrease the respiratory parameters and 3D volume of the thoracic cage, especially during deep breathing.

Inclusion Criteria:Adolescent girls aged 12 to 16With a right thoracic or thoraco-lumbar curvature (right and left)With a Cobb angle between 20 and 40°.Treated with a Cheneau-Toulouse-Munster brace for more than 1 monthWith a duration of brace wearing of more than 12/24hAffiliated to a social security systemExclusion Criteria:Male genderHaving a secondary scoliosis (neuromuscular, syndromic, post-traumatic, congenital pathology)Having a respiratory pathology prior to the diagnosis of scoliosisHave a history of spinal surgeryHaving already benefited from a brace treatment