• By: Althea Zanecosky

Broad Street Run: Eat your way to the finish line


I ran my first Broad Street Run in 1982; there were only 2088 runners in the race’s third year.

The Broad Street Run has grown a lot since then! And so has knowledge about what athletes should eat. The 1980s marked the emergence of the field known as sport nutrition. Back then exercise physiologists were discovering that endurance athletes benefited from consuming approximately 4-5 grams of carbohydrate per pound of body weight daily.

It’s now 2015 and as a registered dietitian I find many runners are confused about how much fuel they need for a long run. Having the right nutrition plan can make the difference between finishing Broad Street strong or not finishing at all.

Here’s what you need to know:

  • You need carbohydrates. Carbs are a good source of glucose, a form of sugar that our brain, nerves, and muscles need to function. A small amount of glucose circulates in our blood, but most is stored in our muscles and liver in another form called glycogen.

  • On a run of 2 hours or less, you can rely on your body's glycogen stores. The food you ate before the run will power you through. That’s the pasta dinner on Saturday and whatever carb you’ve tried during training Sunday morning.

  • Your body can store only a limited amount of glycogen. When you deplete that supply, your muscles and brain run out of fuel and you feel both physically fatigued and mentally drained. This is called "Hitting the wall": your brain and muscles have run out of carbs. Consuming carbs can help you avoid crashing and burning.

  • If you know you’ll be out on Broad Street (or any run) more than 2 hours, you’ll need carbs along the way. For those runners, plan on 100 to 250 calories (or 25 to 60 grams of carbs) per hour after your first hour of running. That’s one to 2 1/2 sports gels or 16 to 40 ounces of sports drink per hour. Sports nutritionist Nancy Clark has been quoted saying "A Hummer needs more gas than a Mini Cooper." For smaller runners, you might only need 100 calories every hour, larger runner up to 250 calories per hour. And the less fit you are, the faster you burn through stored carbs, meaning you'll need more calories midrun to keep going.

  • But be careful about eating/drinking too much during the run. Your stomach won't be able to digest all the carbohydrates and you could experience sloshing, bloating, or cramping (carb overload).

  • The key to long-runs is for runners to experiment with what works for them. Training runs are the best opportunities to experiment with carb sources and practice timing your intake.

After Broad Street, your muscles will need carbohydrates to refuel. Enjoy the race’s “after party” options like bagels and bananas. A little protein enhances the recovery process and may reduce muscle soreness; at the finish line I hand out lowfat chocolate milk to my running family and friends.

Orginal article was published in Be Well Philly and can be read here.

About the Author: Althea Zanecosky is a registered dietitian/licensed nutritionist and is an active member of the Academy of Dietetics and Nutrition’s Sports and Cardiovascular Nutrition practice group. She has served as an adjunct professor of sports nutrition in the graduate school at Drexel University. Althea is a long distance runner and has competed in many marathons including Boston. Look for Althea at the finish line of local races – she’s the one waiting with chocolate milk (for her two adult daughters, also runners). Contact Althea at altheaz@comcast.net.

#nutrition

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