Last week I ended with 47 miles but 9:00 total exercise time. I biked and swam a bit and lifted core. 47 miles seems like a nice place to start- it felt quite easy which is good. I am going in for blood work this week to have a good starting point in my training. I would get a full physical if my doctor knew more than I did about athlete physiology.. a few years ago I went in and got blood work done and found I had a hematocrit of 38... he said that was average. Looking back I see that I was severely over trained at the time.
am) 4 miles easy jogging. No HR monitor or watch.