The world lost an incredible mother, wife, daughter, friend, attorney, underprivileged advocate, and community member suddenly and unexpectedly on October 16, 2013. In honor of my late wife, Holli Wallace, I am training for the Hallucination 100 mile trail run and raising money for the Children's Grief Center of the Great Lakes Bay Region.
Sunday, July 15, 2007
Eating while running
times 2 = 2,260 calories
This week's numbers:
Total mileage: 40 miles
Long run: 20 miles
Average pace: 10:18 minutes/mile
Average heart rate: 152 beats/minute
It was finally a pleasant 70 degrees so I had a great long run today. Today's experiment involved drinking a bottle of Pediasure after 10 miles. Lauren had recommended Slimfast half way through a marathon and since we always have a stock of Pediasure around I thought I would give it a try (Pediasure is similar to a meal replacement drink, but made as a nutritional supplement for children). It went down easily and gave me a good influx of calories so I might be taking a some to the race. It's always been recommended to me that you test out various food before the race so that you know what sits well in your stomach after a few hours.
It's actually a bit of a challenge getting enough calories. Consider this. According to SportTracks, I burned around 2,400 calories on today's 20 mile run. I drank 80 ounces of Gatorade and 8 ounce of Pediasure. This meant I took in 760 calories over just about a 3.5 hour period. This is around 217 calories per hour and obviously well below the 2,400 calories that I actually burned.
Clearly I'm burning more calories than I consume, but it would do me little good (even if it were possible) to shoot for eating as many calories as I burn. Seriously, I would need to have eaten two McDonald's Big Mac Value Meals, including full calorie sodas. Not only would it be unlikely that I could continue to run after even one such meal, but more importantly it wouldn't have mattered. As Steve Born points out in this article, athletes simply can't digest food that quickly. He suggests that any calories over 280 calories per hour will remain undigested.
Well, that still leaves me deficient by about 60 calories per hour. It's something to work on in future runs. Hmmm... the really disturbing thing is that you have to run 10 miles to burn the calories of one McDonald's Big Mac Value Meal.
Also, many thanks to Pat from South Dakota for the donation to the Lupus Foundation. Good luck with your 50k this fall!