Effect of Specific Postural and Breathing Instructions on the Sagittal Alignment of the Spinopelvic Complex Before and After a Dedicated Muscle Strengthening Program: A Pilot Study in a Gymnast Population. - Eyssartier, Camille; Billard, Pierre; Thoreux, Patricia; Sauret, Christophe (Journal of Functional Morphology & Kinesiology, 2026)