Anatomy & Injury
Thoracic Spine
The thoracic spine is the middle section of the vertebral column, comprising the twelve vertebrae between the cervical (neck) and lumbar (lower back) regions. Each thoracic vertebra articulates with a pair of ribs, which limits its natural range of motion compared to the cervical and lumbar regions. In S&C, the thoracic spine is most relevant for its role in upper body movement quality: restricted thoracic extension and rotation directly affect overhead pressing mechanics, squatting posture, rowing and pulling patterns, and the ability of the shoulder blades to move properly during loaded upper body work.
Why thoracic mobility matters in athletic training
The thoracic spine is designed to rotate and extend. When it does not, adjacent segments compensate. Restricted thoracic extension typically transfers load to the lumbar spine, increasing extension stress in the lower back during overhead movements and squatting. Restricted thoracic rotation limits rotational athletic movements and forces compensation through the lower back or hips. Athletes who sit extensively develop thoracic flexion bias, losing the extension range needed for quality overhead and upper body pressing work. This is particularly relevant in overhead athletes, throwers, and any program that includes significant pressing volume.
Practical implications for coaches
Thoracic mobility work is most effective when it targets extension and rotation specifically, not general spinal flexion. Foam rolling on the thoracic region, open book rotations, and quadruped thoracic rotation drills are common warm-up tools. The key distinction for coaches is that thoracic mobility work needs to be performed regularly and integrated into warm-up protocols to produce lasting change. Doing it occasionally as a corrective afterthought produces minimal benefit. Athletes who receive targeted thoracic work consistently often show improvements in overhead position, squat depth, and shoulder mechanics that appeared to be structural limitations but were actually mobility restrictions.
Related terms
Mobility · Movement Screen · Rotator Cuff · Anterior Pelvic Tilt · Bracing