The term “muscle confusion” may be one of the most important for all bodybuilders and powerlifters. When you hit a rut or plateau, there’s a good chance that your body has adapted to what you were throwing at it. The human body is a highly adaptive organism, after all. Doing the same thing day and day out will cause your body to adapt and gains will stop. Simply put, "muscle confusion" is about keeping your body guessing by varying the different elements of your training. These elements include things like how many sets and reps you do, the amounts of weight you put on, the types of exercises you use, the days you train, the sequence of exercises, the length of your rest periods, etc. So if you’ve hit a roadblock, blast through it by using the principle of muscle confusion.