Hey there! This morning I did D2 of Week 3. It wasn't easy in the heat & humidity but I did it..no stopping. YAY!
I have never been a runner..ever. And actually before I even started Week 1 (which I did 3 times) I wasn't even walking much. So if you are already walking 4-6 miles a couple times week you already have a huge headstart from where I started out at.
I haven't used the podcasts but did download the Couch 2 5K iphone app and love it. It queues me when to run or walk but also allows me to play my own music while the app is running...and I NEED my music!! LOL!
Give it a try--I'm so glad I did. I am over 100+lbs overweight, out of shape, & never ran a day in my teen or adult life..So I never thought I would be able to do it let alone that I would even come to almost enjoy it....but surprise surprise!!
And just so you don't get down if you find it difficult at first..
for me the first week was the hardest (well so far.lol). I thought I was going to die..and that was only 60 sec run/jog intervals..But now a few weeks later I am doing 3 min run/jog intervals with less difficulty than those initial 1 min jogs.. Yes it is a SLOW jog..but darnnit it IS a jog! It is amazing how quickly we can improve if we stick with it!!
Granted--I might have to come back and reread this post when I'm faced with Week 4, 5, and 6! AAHH!!
Jessperth: Because I'm such a beginner I really can't answer your question but so far I have been running early in the am's..no food in my system..Only some water and cup of coffee..and then I'm off. Of course I'm a beginner and not running much..So Im sure energy needed would be much different as you run much longer distances & increase your speed.
Maybe one of the running experts here can give you some more advice on that one.