Sit-ups require you to lift all the way up ... Be sure to clasp loosely, so you don't pull on your neck during the move. Slowly curl your shoulders up off the floor to about a 30-degree angle.

However, it is easy to perform a sit-up incorrectly, and when the manouvre is not done right it can result in spinal problems that can prove irreversible. The head and neck muscles should be ...