Gaining speed by pushing HR

Today's run (treadmill): 25 minutes

The threat of rain and fog kept me indoors on the treadmill this morning. The big fan positioned in front of the machine negated the high humidity (for the most part). I spent little time getting up to speed before locking into a sub-9:00 pace for the duration of my run. I wish I had thought to use my heart rate monitor earlier than August because I've found it to be a far better method of improving my pace than simply monitoring my speed on the Garmin.

My current treadmill method is to steadily increase my heart rate by increasing speed every couple of minutes until I reach Zone 4, usually in the last few minutes. I can accelerate that by increasing incline but right now I'm more focused on pace. I'm planning to run with my friend CK on Friday at lunchtime and I hope the harder efforts I've been putting in will help me keep up with him. Either way, I know it will be a challenging workout.