Hyperextension

About

Hyperextensions are performed face-down on an inclined bench: the ankles are secured, the pelvis rests on a support, and the torso is lowered toward the floor before returning to a straight-line position. This movement engages the erector spinae muscles—which run along both sides of the spine—as well as the gluteus maximus and the hamstrings (the muscles crossing the hip joint on the back of the thigh), which facilitate hip extension. The specific focus depends on the technique used. If you flex not only at the hips but also in the spine while lowering, and then gradually straighten the back, the erector spinae will lift the torso in coordination with the extension at the hip joints. If, however, you keep the back rigid and flex only at the hips, the torso is lifted by the hip extensors, while the back muscles remain under load. Despite the traditional name "hyperextension," both variations conclude in a straight-line position, without arching beyond that point.