@retiredteacher after my knee replacement my ortho told me to do my recumbent bike 5 days a week, consecutively, then to take 2 days off for recovery. I think that could apply to almost any exercise, he just knew that I was already using my bike, and he’s a big fan of recumbent bikes. I generally try to alternate what I do for exercise, doing my water aerobics and water jogging some days, and the gym with treadmill and other equipment other days. I still do the bike but primarily when I haven’t gotten much other exercise in.
JK