What is CrossFit?

What is CrossFit?

CrossFit is a program designed to develop what is referred to as general physical preparedness (GPP). CrossFit was the first program to ever define fitness and develop a strategy to optimize it. CrossFit believes that fitness is measurable and driven by data. CrossFit’s definition of fitness is three-fold:

1) You are as fit as you are capable in the following 10 general physical skills:

  • Power
  • Speed
  • Strength
  • Agility
  • Coordination
  • Balance
  • Flexibility
  • Accuracy
  • Stamina
  • Endurance

Any deficiency in one category equates to a deficiency in your fitness. Think of it, who is fitter, a marathon runner or decathlete? The marathon runner might win one event, but the decathlete would win all of the others.

2) “The Hopper Method”: If fitness is measurable then you can test it. How would you test at any task that might present itself? Any task you are weak at is your deficiency or lack of fitness. If a hopper is filled with 25 tasks and you know what they all are, whichever tasks you fear being pulled from the hopper are your weaknesses.

3) Energy System Development: The body has 3 main energy pathways – APT-CP, glycolytic, and aerobic. These pathways can be measured through testing. You are as fit as you are developed across all 3 of these energy systems.

Coach Greg Glassman, the founder of CrossFit, simplified what he believed world-class fitness to be in 100 words:

Eat meat and vegetables, nuts and seeds, some fruit, little starch and no sugar. Keep intake to levels that will support exercise but not body fat.

Practice and train major lifts: Deadlift, clean, squat, presses, C&J, and snatch. Similarly, master the basics of gymnastics: pull-ups, dips, rope climb, push-ups, sit-ups, presses to handstand, pirouettes, flips, splits, and holds. Bike, run, swim, row, etc, hard and fast.

Five or six days per week mix these ele- ments in as many combinations and patterns as creativity will allow. Routine is the enemy. Keep workouts short and intense.

Regularly learn and play new sports. 


Read more of Coach Glassman’s groundbreaking article “What is FItness?” HERE.


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