The most advanced system we can currently use for endurance fitness management; the performance management chart. It is the secret weapon for how athletes are shattering records across the endurance world. We define and explain the PMC here.
Training peaks now allows you to rate a workout based on perceived effort and how you felt during the session. This subjective rating helps dial in your training and overall fatigue levels. Beyond the data this weighs in very heavily for us as coaches. Giving this level of insight to your coaches will help you training load and make sure you are training in the sweet spot!