No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...

That's why we chatted with Rachel MacPherson, CPT, a certified personal trainer and strength and conditioning specialist, who shares five essential core moves designed to strengthen and tone your core ...

Sets and reps: 3 sets of 6 to 8 reps on each side ... and very few exercises match the cable crunch for developing ab hypertrophy. Unlike most other crunch moves, which use scapular retraction ...

While crunches are great for targeting the top ... The aim of the workout is to do the designated number of reps and sets of ...

The Bottom Line: Ditch the sit-ups. These bodyweight exercises are smarter, tougher, and deliver more bang for your buck.

You don't need to do hundreds of crunches to strengthen your ... this vein until you've completed all of the sets of all the ...

Research suggests that spot reduction may not be a myth after all. Discover what happened when a trainer put this new theory ...

The first involves doing crunches and toe-taps ... during workouts I find that I can get lazy late in the set and slow down my reps, knowing I can stop once the time is up regardless.

Crunches aren’t just difficult to master ... You don’t need to do loads of sets and reps either, Dave recommends doing just three sets of 10 reps. “What’s unique about this exercise ...

When it comes to choosing how many crunches to do, it's best to first consider your experience level. "A beginner would benefit by starting with fewer sets and reps such as three to four sets of ...