Can you plataue after your first workout?

Answer 1

I think what you are referring to the term plateau as it is connected with physical fitness and more often in bodybuilding.

A plateau is when you have worked out long enough that you seem to have reached a limit as far as the amount of exercise that you can do or the muscle growth that you have achieved.

The way to overcome a plateau is to "Shock" the muscle or muscles into new growth or development. This is done primarily by changing the workout routine.

When you plateau the muscles have adapted to your routine and are no longer stressed into growing. So the short answer to your question is that it is not possible to plateau after one workout. You must work out using the same routine so long that your muscles know it and have adapted to it.