Is it helpful for arthritic knees to jump on a mini trampoline?

Half the time , for some reason, my knees sort of ache. That is, some days they feel normal; others they feel weak. So I jump on my mini trampoline. But often when I do that they get worse. Is it good to use one if you have weak, aching knees about half of the time or could it make them worse? My daughter said I should take very short walks instead. They pop when I walk sometimes but there’s no pain from it .