Thanks, Karin. I did forget to mention that my trainer had me use the arm ergometer when I had to quit everything else. I got the heart rate and I felt good. Later that day, my shoulder joints were screaming at me and that pain kept me awake for two straight nights! Almost my entire body was on ice packs. I have an on-and-off shoulder impingement issue that really was annoyed by that workout. Perhaps I need to just use the ergometer for distance and or time…but not worry about the speed ? Typical instructions for an old lady I guess.