Lie on your back with your hands flat on the floor by your sides, palms facing down.
Place your heels about 10 to 12 inches from your glutes.
Press your heels into the floor while pushing your torso up into a bridge position.
Leave your right heel pressed into the floor, and keep your knee bent as you raise your left leg until your hip is at a 90-degree angle.
Lower your left leg back so that you're back in bridge position. Make sure you're pressing through your glutes so your pelvis doesn't lower toward the floor.
Now switch legs and repeat this sequence.
This completes one repetition. Do 10 alternating reps.