Dumbbell Torso Twist
Works: Obliques, CoreStart with a wide stance and your knees slightly bent. Hold an 8- or 10-pound dumbbell at chin level with your arms extended straight ahead of you.Keeping your arms parallel to the floor, and straight, twist to the right, rotating on the ball of your left foot.Stop rotation when the dumbbell is in line with your right leg. Then repeat the move to your left, rotating on your right foot and bringing dumbbell to your left leg.Perform two sets of 20 nonstop reps without pausing at the center.Tip: Change it up with cable twists or kettlebell twists. Cable twists are done slowly, but a kettlebell twist should be explosive, then slowed down at the end of the movement.