Exposes Weak Links Immediately. Demands Thoracic Stability, Not Lumbar Motion, Thoracic stiffness without spinal compressionUnlike sit-ups or twists:The thoracic spine must stay quietThe lumbar spine must stay neutralThe Belden Bar builds real spinal stiffness, not spinal motion.
Unlike sit-ups or twists:
The Belden Bar builds real spinal stiffness, not spinal motion.