When you look at the minimum (the 15 minutes of raking leaves 5x a week) it does seem minimal. But, if you do the "recommended" of 60-90 minutes 5x a week, I think a lot of us would fall in that category. Like today, I did a 30 minute run on the treadmill and 10 minutes of core work. I sweated. My HR was up. But, I don't have time for more. I do stuff like this twice a week, maybe three times. Sure, I am doing 1-3 hour rides a couple of times a week later in the season, as well as lots of short rides of about 45 minutes. I do stuff 6 days a week. Something. I just choose not to do the type of training that some people here do. I am not training for anything and I like some down time...
And people think I am obsessed.