Fatigue is that you first deplete the muscle group with the isolation exercise, after which you pull it beyond the normal end point with the help of the basic exercise, with other muscle groups helping the muscle group to get the repetitions done. An example of a superset where you pre-fatigue the muscle group is a combination of leg extensions and squats. Here you train the quadriceps with the leg extensions, until you can not go any further, after which you use the squat to deplete the muscle group. The quadriceps are trained much more intensively by this combination than if you did the exercises separately from each other. A disadvantage of pre-fatigue is that during the basic exercise you can not    ..…Testoboost  pro

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