How to Pace a 5-minute Power Test for Maximum Performance
Power testing isn't easy, and proper pacing is challenging for everyone, especially as the tests get longer! When developing a rider profile or power duration curve, a 5-minute test is a common duration. The same targets and principles would apply to a 6-minute test, commonly used to find max aerobic power (MAP) and as a proxy field test for VO2max testing. The same principles, but with lower targets, also apply to most of your longer aerobic power tests (8 or 20-minute tests being the most common): start out slightly below what you think a reasonable target is, and then try to build throughout the interval.
The trick is knowing what a reasonable target value for you is. Knowing yourself and your riding history, as well as current fitness, is helpful, but a coach can certainly help you find a reasonable starting point as well.