@mayofeb2020 I think I said I would get back to you about bursitis and the bike. I have been doing it, actually as long as for 40 minutes and it has not bothered my bursitis. I think I must have done a combination of things, or maybe I had done it even longer than 40 minutes. @pollyanne Are you still not using your exercise bike? Maybe you could work up gradually. That's what my sister did.

@patriciao You are right about the apple watch. I checked online and was told if I was not walking briskly enough to get my heart rate I should put it under "other". When I walk with my husband I do that. When I walk alone I go much more briskly so my heart rate gets up well into the range so I use "outdoor walking" then.

@macto I'm not sure if I mentioned this before in this discussion, but my orthopedic doctor said to do the bike five consecutive days and then to take two consecutive days off for recovery. That was after my knee replacement. Now I do not ride for five consecutive days because I do other exercises also.
JK