Kieran Abbotts is a PhD student at the University of Oregon, studying human physiology. He earned his master’s degree in Metabolism and Exercise Physiology at Colorado State University. The lab where he now works studies exercise and environment and stressors on physiology. In other words, he’s an expert on how the chemicals in the body work during exercise, and what happens when things get out of whack.
“Essentially, there are two kinds of training. There’s functional overreaching, which means you stress the body with hard workouts and long runs. Then you provide adequate time to recover, and you induce adaptations,” Abbotts said. This kind of training is ideal—your body is getting stronger. “You want to be functionally overreaching as an elite athlete—so that you’re making progress and becoming a better runner, but also giving yourself adequate recovery.”
And then there’s non-functional overreaching, which can feel the same to many athletes, but it’s very different. “With non-functional overreaching you’re essentially doing the same thing—big workouts, stressing the body—but not…
