DO YOU KNOW WHAT IS TRUMPET WARM-UP?

One of the most talked-about subjects in a trumpeter's routine is warm-up, but do you at home use this foundation consciously or is it merely the reproduction of others' ideas?
In this video I show the differences between warm-up and action in performance, there is a lot of difference and didactically convey my approach to this subject.
Remember, there is no absolute truth, what works for me may not work for you.
gs