Skill level
Beginner
Type
Bodyweight
Equipment
No Equipment
Body Parts
Abs, Core

Step-by-step instructions

1. Lie on the floor, keeping your back pressed to the ground and your hands behind your head. Raise your knees so your thighs are roughly perpendicular to the floor.
2. Touch your opposite elbow to the opposite leg. That's one rep. Repeat on the opposite side.