Originally Posted by
Justin
The workouts in CrossFit generally appear to be uniform, but underlying the workout as written (or "as prescribed" in the language of CrossFit) is the principle that you are free to modify, or scale, the workout to fit your ability level.
This way, you can talk with a coach before starting the workout to find what will be a challenge at your ability level.
For instance, if you can't do pull ups, they will have you substitute an easier movement that works the same muscle group, like ring rows.
As a general rule, only someone who's exceptionally athletic will be able to complete a workout as prescribed. Almost everyone scales to some extent.
Also, you don't always go to failure. Workouts can be designed a couple of different ways, including doing as many rounds as possible in a time limit, completing a set number of rounds in your own time, or some variation of the above.
Also, I wouldn't characterize CrossFit add weight training either. It's not. Its a schema designed to work towards an ideal of general fitness, and includes a cross section of various kinds of exercise, including body weight stuff, weight lifting, endurance, balance, and mobility.