I’ve been spinning my wheels.
Roughly every other day.
For 30 minutes.
That seems to be the schedule that doesn’t break my knee.
(If I do 7.5 miles on top of the 5-6 I walk, that puts me just 3 miles farther behind pace for my virtual trek around Africa. Versus falling behind by 10+ miles a day.)
Update: two days after that, I was able to do 7.9 miles in 30 minutes. (So maybe eventually I’ll pick up those extra miles on biking days. Though somehow I doubt it will ever be enough to make up for non-biking days.)