Focus on form rather than speed. When performing bicep extensions, make sure your elbows are pointed forward - don't drop them down. Find your rhythm and stay with it throughout the circuit. Extend your arms all the way during bicep extensions and standing shoulder taps. Once the tensions builds up, you will know it is working.
Got Dumbbells? Do the Upperbody Works Plus Workout instead.
Extra Credit: 1 minute rest between sets.
