Exactly. indoor trampoline is good for fitness. Jumping on it is enough for 15 minutes. Many years ago I used to do some training in a garage on a mini trampoline, mainly when there was too much ice/snow to train effectively outside. I'm not sure anyone can advise you but just try it and see here - if it's not hurting your ankle maybe it's worth a shot. For me I found it similar to other cross-training but not as good as running. You can definitely get a good aerobic workout in and it is strengthening also, but in a different way than running.
Hi Fharlm, and welcome to the wonderful world of the Friends of the Mountain Dulcimer. It's a good place to come, spend some time, learn about the dulcimer, and to meet some good people.
Hey Fharlm, welcome aboard. Glad ya found us.
Welcome Farhim to Friends of the Mountain Dulcimer. Glad you joined. This is a great place to hang out with others who love the mountain dulcimer. If you have questions please post them in a new discussion. We'll be glad to help you along.
Welcome to FOTMD Fharim. It is good to have you aboard. I look forward to your participation here.
"The dulcimer sings a sweet song."