Now, let's work the upper body with some push-ups. We'll use 5 different hand positions. Let's start with normal grip, shoulder-width. Run system. That's it! Focus your energy. You ready? Run system. That's it! Focus your energy. That's it. Now, time to torture our stomach and abdominal muscles. Flip on your back and get ready for stomach crunches. You ready? 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 Now, roll on your stomach and reward your lower back. Put your hands behind the small of your back. Get ready for some heartburns. Run system. That's it! Focus your energy. You ready? Run system. That's it! Focus your energy. That's it. Now, let's work some lunges. Keep your legs shoulder width apart. Are you ready? 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Now, let's work your waist again. Flip on your right side, one hand behind your neck. You ready? Now let's work the upper body with some push-ups.