The thoracic spine is more often than not a common site for postural dysfunction. Chronic sitting, poor posture and long periods of inactivity can produce kyphosis and can lead to diminished mobility and function in the sagittal, frontal and transverse planes.

Type-1 thoracic motion is rotation and lateral flexion of the spine in opposite directions. This typically involves T-6-T-12 vertebral segments. When Type-1 motion is restricted, poor force transmission can lead to gross egregious stress through the lumbar and cervical spine. This sequence improves postural alignment and mobility in the transverse and frontal planes.