It is important to keep the intensity up with today’s workout. You’ll be working antagonistic muscle groups with your back and chest, which should really aid in the stretch and pump you’ll feel from today’s exercises. Be sure to keep your back straight when doing the dumbbell bent over rows. You’ll also want to keep your back straight when doing the tire flips, really concentrating on bending at the knees and driving through the heels. You’ll run through the circuit a total of four times.