5 Russian Twist
Sets: 2 Reps: 15 Tempo: X Rest: 60 Seconds
Grab a medicine ball or dumbbell and sit on the floor, your knees bent and your torso about 45 degrees to the floor. Hold the weight straight out in front of you . Rotate your torso as far as you can to one side , and then reverse the motion, twisting to the other side . That's one rep.