Thoracic Rotation
Definition
The rotational movement of the thoracic spine around its vertical axis. Normal thoracic rotation is approximately 30-50 degrees to each side. The thoracic spine is the primary segment for axial rotation in the trunk -- the lumbar spine contributes only about 5-10 degrees per side.
Clinical Significance
Thoracic rotation is essential for gait, throwing, swinging, and any rotational sport. Asymmetric thoracic rotation (rotating further to one side than the other) is one of the hallmarks of structural patterns like the Right BC pattern. Limited thoracic rotation forces compensatory rotation at the lumbar spine (contributing to disc injury) or the cervical spine (contributing to neck pain). Restoring symmetric thoracic rotation is often the key intervention for both shoulder and low back complaints.
How AKMI Assesses This
AKMI measures thoracic rotation bilaterally in seated position (to eliminate pelvis and hip contribution). The seated rotation test isolates true thoracic mobility. Asymmetry between left and right rotation is a key finding for structural pattern identification.
Get your spine assessed
A biomechanical assessment measures thoracic rotation and its relationship to the rest of your structural chain. 18 tests, objective data, personalized programming.