In terms of my current fitness goals, six days would be plenty and possibly even preferable to seven — but as soon as you introduce that element of choice, every morning suddenly gets much more complicated. Should I take my day off this morning? How tired am I? Is it going to rain? How do I expect to feel later in the week?The scenarios he describes are in-line with my personal experience of 5 day/week workout schedules, which I've never been able to maintain for more than a month or so. However, when I decide I'm going to run 7 days per week, I become incredibly more consistent - I've been running 7 days per week for all of 2011 so far. This type of schedule obviously applies only to a small subset of runners, but Hutchinson and I are apparently both part of it. He concludes thusly:
Being flexible and fitting in exercise when it’s convenient may sound good in theory. But for me, at least, my will power isn’t strong enough to do that on a regular basis.You can read the article here: http://sweatscience.com/decision-fatigue-and-workout-planning/ He also has a book. I read it a couple of months back and recommend to all readers: http://www.amazon.com/gp/product/006200753X.