How to Train Your Arobic System

In the context of endurance sports and ultra endurance sportsspeed really isn't that important. It's not about how fast you're going, it's like the classic rabbit in the hare. proficiency in endurance sports is about building that arobic engine, making it incredibly efficient. And over time, let's say you start out and you can't go more than like, an 11 minute mile without my heartg but if you stick to it, three months later, you're doing a nine minute mile at that pace.