Get down on your hands and knees. Have your knees below your hips and your shoulders, elbows, and wrists in line.
Plant your hands flat on the floor and engage your abs to put your back in a neutral position.
Flex your right leg without extending the knee.
Take a breath and raise your right leg, bringing it to your side. Lift your leg as high as your mobility and strength allow, exhaling at the top. Don’t let your torso rotate with your knee; keep your hips squared.
Bring your right leg back to the starting position as you breathe in.
Once you’re done, do the same number of reps with the other leg.