I haven't worked out on the exercise bike for quite a while. I just got done doing 20 minutes on it and kept my heart rate at about 130 bpm for most of the time. I wanted to do 30 minutes but at 20 I started to feel like I might be pushing it a little bit.

After a few more 20 minute sessions I should be back up to a comfortable 30 minute session. I should also be able to comfortably get my heart rate up to about 145 bpm. I feel pretty good right now too. I always feel good after exercising, it's just getting motivated to do it that is tough. It's also easy to fall into a slump.