hip extension

The pelvis rotates as you run, which means it needs to move in a multidimensional way.
Many people think they have tight hips. But is it tightness? Or is it something else?
Great athletes have great hips. And all athletes need hip mobility, stability, and explosiveness.
The Glute-Ham Developer (GHD) is one of the most effective training tools available. This video outlines the proper form for two popular movements, the GHD Sit Up and the GHD Hip Extension.