What are the best exercises to keep fit - especially for jumping?

Skipping and bareback

Hello, I wrote an article on my blog about a basic flatwork you can do with jumping horses:
http://cyrinecherif.com/basic-flatwork-you-can-do-with-your-horse/
You can also find many other exercises, and on my instagram account as well
www.instagram.com/cyrinecherif_equestrianblog

Hope this helps :)