I train for 1.5 hours five days a week and spend about 1 hour of each session doing exercises on the #bosu ball. You can use it both ways and jumping on it and working on it stabilises your core and improves overall muscular strength and balance. Give it a try! It comes with a cd with a host of exercises you can do with it! You will find muscles you never thought you had!!
It’s painful but totally worth it!