Okay, I've just started a training/weight-loss program, but I'm a little confused on utilizing HR. I have a Polar HR monitor, and when I rode yesterday, my sustained HR was around 155bpm for a 4 mile ride. I wasn't sprinting or going all out, just riding comfortably. Since I'm out of shape, by HR was around 130, about 5 minutes after starting. The program gives three ranges, with range 1 saying I should be around 50-80% of my maximum HR. (The program has 5 min in range 1, 5 min in range 2, back down to 1, etc.) So does that mean I should keep it around 130 for the 5 minutes, before going to the next range?
I'm new to the whole tracking my HR to train thing, so any help is much appreciated.