Rather than doing what you think is better, just trying doing what is right for you. There are benefits to both. There are cons to neither.
Pros to splitting it up: it's great if you don't have a lot of time. Or if you get tired easily and prefer not to test your endurance too much. It's also great for what I like to call "injecting calorie burning" into your day. A quick walk clears your head, resets your mood, and revs up your fat burning in the later part of the day.
Pros to logging all your miles in one go: Building up your endurance, and working on your speed.
Me, I exercise once during the day. But I keep a pedometer with me at all times and I strive to log 10,000 steps (roughly about 4mi) every day. Only 2 of those miles are usually done during my run/walks.
"If you pay attention to when you are hungry, what your body wants, what you are eating, when you've had enough, you end the obsession because obsession and awareness cannot coexist." - Geneen Roth
Last edited by Palestrina; 10-10-2012 at 03:53 PM.