From CrossFit's website:
For CrossFit, the specter of championing a fitness program without clearly defining what it is that the program delivers combines elements of fraud and farce. The vacuum of guiding authority has therefore necessitated that CrossFit provide its own definition of fitness. That is what this article is about: our “fitness.”
Our pondering, studying, debating about and finally defining fitness have played a formative role in CrossFit’s successes. The keys to understanding the methods and achievements of CrossFit are perfectly embedded in our view of fitness and basic exercise science.
It will come as no surprise to most of you that our view of fitness is a contrarian view. The general public both in opinion and in media holds endurance athletes as exemplars of fitness. We do not. Our incredulity on learning of Outside’s awarding a triathlete the title of “fittest man on Earth” becomes apparent in light of CrossFit’s models for assessing and defining fitness.
CrossFit makes use of three different standards or models for evaluating and guiding fitness. Collectively, these three standards define the CrossFit view of fitness. The first is based on the 10 general physical skills widely recognized by exercise physiologists. The second standard, or model, is based on the performance of athletic tasks, while the third is based on the energy systems that drive all human action.
Each model is critical to CrossFit, and each has distinct utility in evaluating an athlete’s overall fitness or a strength-and-conditioning regimen’s efficacy. Before explaining in detail how each of these three perspectives works, it warrants mention that we are not attempting to demonstrate our program’s legitimacy through scientific principles. We are but sharing the methods of a program whose legitimacy has been established through the testimony of athletes, soldiers, cops and others whose lives or livelihoods depend on fitness.
MORE THAN A GYM.
WE ARE A COMMUNITY.