I like to add recovery exercises between sets or even breathing exercises or other tricks.
A training session should not have breaks at all.
Imagine that you just finished 50 push-ups, the next thing should be to exercise another group muscle and then get back to the push-ups.
Got the idea?
I like to mix yoga and Pilates exercises between strength training sets, and so on.
That old paradigm of a trainer sitting down watching a client between sets is not good.
It is a vibe killer for your motivation.
So next time you train perform every single exercise with slow breaths, no rest in between sets and add some exciting activities in between.
A plan must be created before you start anything.
I highly recommend you train with a qualified trainer with years of experience.
Go for it!
NO. In my experience, I would say that I should not waste a single second of a session.