At 41, that looks like a trip to the hospital waiting to happen.
After ACL reconstruction surgery, my physical therapist had me using a
BAP Board.
Pretty neat gizmo, but
way outside of my price range.
The
Carrom Balance Board
is serious work. And affordable. We used to have one of these somewhere at the dojo. We would use it on carpet, and it will challenge your balance.
The
BOSU Ball can be pretty good too, assuming you want to go overboard and use it in ways they specifically tell you not to. Sure, you can air it up and place the flat base on the ground, using the ball to support your weight. Or, ignore the manufacturer, air it up, place it upside down so you are standing on the plastic base. What's nice about the BOSU ball is that you can change the amount of air pressure, and thus the intensity of the action.
