Myth #2: The more situps you do, the better.
Truth: Doing hundreds of situps will not help you lose abdominal fat!
Situps actually do little to increase strength because they focus on endurance and are inefficient.
It is hard to overload the abdominal muscles doing sit-ups.
Thus, you will be wasting your time.
Crunches (yes, crunches) are the best way to overload the abs and work the entire midsection, whether you do them on the floor or on a Swiss Ball (my personal favorite!).
There are many variations of crunches, and each targets different parts of the abdominal muscles.
While doing crunches, it is imperative that you focus on proper technique and gradually increasing resistance.
Using this method, you can fatigue your abdominal muscles using fewer reps.