A friend and I are training for a 10K race, using a slightly modified version of C25K (running slightly longer, doing more repetitions in one run etc). We're doing about the same thing, but during a recent discussion we discovered that we walk differently during the walking breaks on the schedule. At this point the discussion is almost academic, because we're almost at the point in the schedule that abandons walking breaks completely, but I'm still curious.
The disagreement we have is whether the walking breaks in C25K should be relaxing walks, or power walks. I've been doing relaxing walks (which, actually, feel almost [but not quite] like resetting to full rest after 3-5 minutes), while my friend has been doing power walks. Which of these is the better method (or intended method) of C25K training?