Weider´s training principles: The isolation principle
Several muscles can be trained as a unit or isolated and trained individually. All muscles are involved more or less in every movement – either…
Tag: isolation principle
Several muscles can be trained as a unit or isolated and trained individually. All muscles are involved more or less in every movement – either…
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Results: Put in simpler terms, it will give you maximum muscle growth. When body parts are neglected they won't be able to grow. Isolation movements give you the ultimate edge. You get to hit the muscle group that couldn't be hit with compound movements, or it wasn't hit as good and that's why it's lacking.
Completely exhausting a muscle. Compounds work multiple muscles at once, yet it is impossible to work each of those muscles to its max with a single compound exercise. One muscle will tire out before the other. Thus the only way to get a complete workout with compounds would be to do a compound exercise for every muscle in your body. And that is not feasible due to energy and time. This is where isolation work shines, each muscle can be worked to its maximum potential that does not take an extreme amount of time or more energy than one has.
Fewer opportunities for injuries: Injuries can arise in all types of workouts, but they are much less common in isolation exercises. This being because compounds are more intense than isolations. They use several muscles at once, which greatly opens the door for one muscle overpowering another, thus resulting in a pulled muscle. Examples are the "Big 3": squats, deadlifts, and bench press. Squats and deadlifts put a great deal of pressure on your spinal column while bench press puts pressure on your chest and shoulders at once, often contributing to a pulled muscle if the barbell slips. 
