Add Yahoo as a preferred source to see more of our stories on Google. Should you really slow down your reps in the gym for muscle growth? Does it really matter how long each rep lasts? You might have ...

Crush your core with this Explosive Plyo & Abs Workout from Don Saladino.

Listen to any lifting advice for long enough, and you'll invariably hear that slowing down your reps results in better muscle growth. Indeed, bodybuilders and influencers have long since championed ...