PLEASE NOTE: this is not full Tony Horton P90X Workout Program DVD set, this is only downloadable PDF eBook from it.The innovative edge the P90X has over other home fitness programs is a method Tony Horton has developed called muscle confusion. By relying on 12 different workouts, and limiting the number of times each workout is performed for a given period, muscle groups dont have time to fully adapt before confronting a new challenge. This prevents muscle groups from reaching a plateau, increases the overall complexity of ... More >>> Tony Horton - "P90x Alternate Calendar" is electronically distributed. Download it for FREE |