12 MIN ABS Perform each exercise for 40 sec with a 20 sec rest in between - 3 rounds 1.Alternating V up 2.Side to Side leg crunch 3.Plank dumbbell reach 4.Russian twist leg crunch Grab a dumbbell & add this to the end of your workout at home or the gym👏🏼 #abcircuit #abworkout #abs