Get Sculpted Muscles Like J Lo's With These 21 Arms, Abs, and Butt Strengthening Exercises

Strengthen your back and abs at once with this move.

• Start in high plank, each hand holding onto a dumbbell that is resting on the floor. Move feet wider than shoulders.
• Pull right elbow back, raising dumbbell toward chest, keeping right elbow close to torso, abs tight, and hips facing down.
• Lower weight for one rep; repeat on the opposite side.