MYTH #5: DOING REPS FASTER WILL GET YOU EVEN RIPPED-ER
This is actually half true. Slow and steady is usually recommended when exercising because it limits the use of momentum and affords you better control to prevent injuries. But research shows you’re better off varying your rep speeds when it comes to abs. A 2008 study found that the muscle activity in all four abs groups increased when reps were performed more quickly.
Thing is, they also found that when reps were done at a moderate pace, the external obliques were engaged more than six times as much, even though they were hardly involved in the movement. Translation: Vary speeds to get both benefits.
