I decided to do a 4th day of running this week in preparation of my new program on Tuesday. I figured I would try a nice trail run. It was interesting. My legs in general felt really good. The run was peaceful and enjoyable. I however could not do a full 30 minutes. I got to 15 minutes and my chest was sore and I was breathing too hard. I decided to take a break and walked for five minutes. I then finished up the final ten. I am not sure why I did not do the full 30 run.
I think there are a few reasons. First off the hills. I am not used to hills. It really killed me. I also think part of it might have been the fact that it was not an "official" run. Not part of a program. All during the program I would not quit. Ever. So perhaps I had less motivation to never stop.
All in all I am good with it though. I enjoyed the running and walking and I am sure I got a good workout. I will do some more of these runs for sure.