90/90 Hamstring vs Inchworm

Lie on your back, with one leg extended straight out.

With the other leg, bend the hip and knee to 90 degrees. You may brace your leg with your hands if necessary. This will be your starting position.

Extend your leg straight into the air, pausing briefly at the top. Return the leg to the starting position.

Repeat for 10-20 repetitions, and then switch to the other leg.

Stand with your feet close together. Keeping your legs straight, stretch down and put your hands on the floor directly in front of you. This will be your starting position.

Begin by walking your hands forward slowly, alternating your left and your right. As you do so, bend only at the hip, keeping your legs straight.

Keep going until your body is parallel to the ground in a pushup position.

Now, keep your hands in place and slowly take short steps with your feet, moving only a few inches at a time.

Continue walking until your feet are by hour hands, keeping your legs straight as you do so.