Fig. 3From: The role of the paraspinal muscles in the development of adolescent idiopathic scoliosis based on surface electromyography and radiographic analysisCobb angles in group B. (a) Cobb angle in the habitual standing position (HSP-Cobb). (b) Cobb angle in the relaxed prone position (RPP-Cobb). (c) Cobb angle in the prone extension position (PEP-Cobb). The PEP-Cobb is larger than the RPP-CobbBack to article page