[mintyDijon]

Flags are awesome.

Dragon flag https://greatist.com/fitness/dragon-flag

Human flag https://www.onnit.com/academy/so-you-want-to-do-a-human-flag...

But there are tons of great abdominal exercises, all with different benefits depending on your goals.

The sit up is such a specific motion, that it really has very limited benefits. Stabilization type exercises will benefit more. Some exercises will help with core strength alot, without being directly "ab" exercises. Heavy weighted squats are a great example of this.

If your goals are only to get a 6pack then you don't need ab exercises as much as you need a very disciplined diet supplemented with lots of cardio.

[casefields]

I would like to add that these are quite difficult unless you have a baseline of some athleticism. If you’re just getting into fitness these are going to be too hard.

For 6 packs, good diet and being lean/athletic is all you need.