You can consider this exercise to be a lot like the bottoms up.
The difference? A shortened range of motion & hence, more tension to the abs.
- 1Lie down flat on the ground with your hands by your sides
- 2Raise your feet off of the ground slightly to tense the abs
- 3Bring the knees towards your chest & lift up the hips slightly to further contract the abs
- 4Go back slowly to the initial position