Begin on all fours with your shoulders stacked above your wrists and your hips stacked above your knees.
Engage your core by drawing your belly button into your spine.
Straighten your right leg behind you, with your toe resting lightly on the ground.
Keeping your right leg straight, squeeze your glutes to lift your leg up until it is parallel with the ground. Hold for two seconds and then slowly return to the starting position. Repeat for 30 seconds before switching sides.