Triathletes, Is It a Mental Challenge or an Athlete's Challenge?

A lot of people don't connect with endurance athletes because it takes away the ex al validation, if you will. A trend that we see now in inendurance port as well is to create more and more measures that are really not validated and are irrelevant. And a lot of composite scores for performance readiness, or recovery, or even training load, dare i say it, tu,. That are really insufficiently validated, if at all. But even if they would be valid, would be quite irrelevant.