Sit Ups are great because you can do them anywhere, inside or outside, AND you need no equipment AS you are using your own body weight to provide the resistance.
But you must focus on the quality, as much as the quantity.
What they are good for:
Strengthening your abdominal muscles. Plus, helping with your hips, chest and neck, and flexibility.
How to do a sit up:
This is a classic exercise that is often done poorly or incorrectly, which can negate any benefit or, worse, cause injury
Learning to do this properly is important.
- Lie down on your back, with your feet on the floor, knees bent.
- Place your hands on either side of your head in a comfortable position.
- Bend your hips and waist to raise your body off the ground.
- Lower your body back to the ground into the starting position.