I have either a stress fracture to the heel bone or really bad plantar fasciitis. I cant bear any weight on my heel at all.
I need to keep in shape for gymnastics and various other sports i compete in. (mostly board sports like surfing and kiteboarding)
I am wondering if you guys know of any workouts i could do that doesn't put any weight on my foot, but still works out my legs.
so far i have found these:

do you guys have any other workouts that i could do?
thanks!