Did a full 12mins on the stationary bike this morning.
Might not seem like a lot to able bodied, but I started with a slow pedal speed 5 minutes, adding 10 seconds a day. Also, I upped the resistance slightly, but not to the point that the pain was unmanageable. I had to take a break for a few days because of umm ‘chafing’ (the seat is not very comfortable.)
The shin issue is still annoying me, but doesn’t bother me when I’m on the stationary bike, because the foot isn’t flexing heel to toe, which is what is causing the shin to cramp.