Weighted Hip Extensors

Rest on your forearms and one knee, keeping the other leg straight a few inches off the floor, with a suitable ankle weight attached, (you don't need to much weight to make this exercise effective).

ATTACH ANKLE WEIGHTS TO THE LEG

Smoothly raise the straight leg upwards, taking it form a start position where the foot is an inch off the floor, to as high as comfortably possible, maintaining a straight leg and back.

Focus on keeping the movement slow and under control, feeling your glut muscles work as they raise the leg upwards, maintaining an equal position between your legs, avoid letting your leg move out to the side, or rotate your body around from your waist.

You may wish to try pointing your foot either outwards - inwards or as normal downwards, in order to work the different muscles that help stabilize your main gluteus maximus muscle.