00. How to Bring It

P90X, or Power 90 Extreme, is a home exercise system developed by Tony Horton in conjunction with Beachbody and director Mason Bendewald, which claims to improve physical fitness in 90 days through a rigorous periodized training program combined with a nutrition and dietary supplement plan.

P90X is an intensive 90-day home fitness program that combines a variety of exercise styles, including strength training, cardio, yoga, plyometrics, and stretching. Most of the workouts are just under an hour in length, and feature Tony Horton as instructor and motivational leader along with 3 or 4 fellow exercisers as backup. For workouts that require weights, one of the backup exercisers will generally demonstrate the exercise using the alternative resistance bands. The backup exercisers also demonstrate some moves at lower levels of intensity for participants who aren't as fit. With the exception of the Ab Ripper X routine, each workout generally begins with about a 10 minutes dynamic warm-up and ends with a cool-down of 3–5 minutes.

The P90X program is 13 weeks in length, exercising six days per week. There are three rotations that come with the program: classic, lean, and doubles that all target different end goals. There are a total of 12 workouts that are included with the program, each targets the body in a different fashion.