What do fitness, fatigue and form mean?

When you observe these terms in Athletica, they take on a meaning in reference to a mathematical formula for managing training stress (load) developed in the 1970’s by Banister and colleagues. Fitness is the accumulation of training stress over a long period of time. Fatigue is the accumulation of training stress in a short period of time. And form (or freshness) refers to how much relief you have from training. The aim of training is to maximize fitness and minimize fatigue just prior to a performance. Your Athletica training program does precisely that for you on a daily basis.