Tone Your Abs, Sculpt Your Tush Plus Strengthen Your Arms With This Effective Plank Workout
Planks, without a doubt, are the best core exercise there is. The harder-than-they-look poses in this workout take it up another notch. Adding movement—like, say, raising an arm off the ground—while holding a plank position increases the challenge to your abs. It also recruits your legs, glutes, back, shoulders, and arms to get in on the action—meaning it can firm