Carb Depletion and a Marathon – Yet Another Experiment

After a couple broken hours of sleep from getting up with my son throughout the night, the clock painfully insists that it’s 4 am and time to get up if I’m going to make that early morning run happen before the humidity kicks in.  We’ve had quite the mini heat wave for us north easterners.  As I indulge on a steamy bowl of chocolate oatmeal and a stout coffee, one thought occurs to me: six months.  Will I be able to do what it takes to train for a BQ at the Pensacola Marathon in November?  (Of course, actually going to Pensacola is contingent on my husband’s shift work schedule not changing by then.)  But do I really have what it takes?  What does it take?  Are dedication and passion for running enough in themselves?  It’s quite possible that it’s a long shot for me to expect to BQ in 6 months, but I still feel like I have to try.  I think it’s possible enough to try to make it happen.  If I don’t get it done in Pensacola, I’ll work towards the Pittsburgh Marathon in 2013.IMG_1184

It’s going to be hard, no doubt.  Especially with my schedule (or lack thereof) – a combination of extreme sleep deprivation, a husband who is a shift worker, and having the very demanding task of caring for a fully dependent child; I’ve got my hands pretty full when you throw marathon training into the mix!  I just have to make it happen.

This week I’m focusing on long runs and hoping to hit at least 60 miles by the end of the week.  I have been experimenting with doing long runs in a carb-depleted state in hopes that you can actually acclimate the body better for burning fat reserves as fuel.  When I first started doing this, I did notice a little sluggishness on my runs, and my muscles tended towards fatigue quicker, but I don’t seem to be experiencing any symptoms as of recently.  I’ve been doing these carb-depleted runs now for about a month.  Mind you, there’s absolutely no intention of restricting carbs on race day or even on some critical speedwork days, it’s just the idea that having the body adjusted to fueling up with fat will move the wall out that much further.  I have no idea how long or how much volume you have to achieve before any obvious benefits manifest themselves.  I just make sure I do one-two 5+ mile runs a week in a carb-depleted state.  I do not consume any carbs on these runs, only water.  For 3 days, I eat well under 100g of carbs while I pump out these runs.  I try to make sure I get a good long run in especially on the 3rd day when I know my glycogen stores are zapped from the previous 2 days of low-carb runs.  These runs are typically slower and focused more on running for a certain amount of time instead of mileage.

Time for a power nap before I hit the pavement!