In this case I am going to let you 2 types videos:
-The first type is about  Rytmic Gimnastic where you can see a tipycal warm up and the 2 tipes of methods to do it.
https://www.youtube.com/watch?v=8fMUn9ZmDCE

https://www.youtube.com/watch?v=3LOLd1vDFpA

-The second type is about how to warm up and strech in the GYM.
https://www.youtube.com/watch?v=Lx4YFmORsWc

*The only problem is that the videos are in spanish because I couldn`t find any good video in english.