Dr. Stokes [1] has proposed a vicious cycle hypothesis which relates the asymmetrical loaded spine of scoliotic adolescents to a progressive discal and vertebral wedging deformity. This hypothesis is mainly significant to the study of lateral spinal deformity (scoliosis), but can be related to the curvature experienced as a result of kyphosis (spinal curvature in the sagittal plane, which is the plane separating the body in left and right portions). The asymmetrical tissue remodeling causes a wedging effect that can gradually increase spinal curvature can, in some cases, be non-progressive. The effect of torsional loading to this specific spinal curvature could indicate that strategically applied muscular approaches to spinal activation could help prevent further curvature in less severe cases of spinal abnormalities.

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