What is trunk hyperextension?

Trunk hyperextension refers to the backward bending of the torso beyond its neutral position, often involving the lumbar and thoracic regions of the spine. This movement can occur during activities such as certain exercises or sports, where the back is extended excessively. While it can strengthen certain muscles, excessive trunk hyperextension may lead to strain or injury, particularly in the lower back. Proper technique and caution are essential to avoid potential harm.