As a Lt Col in the U.S. Air Force, I have been an Air Force Marathon Team Member since 1988. This will be my 20th Marine Corps Marathon with two Masters wins and two top-five overall finishes. This Sunday, I will be competing again in the Marine Corps 26.2-mile race which is held in D.C.
While I will be speaking on Barefoot Running Style at the AMAA Sports Medicine Symposium the day before, please allow me to share some of my own training and racing experience, and perhaps you too can follow some of these recommendation as you prepare for your own race. wherever or whenever that happens to be.
As you enter the week prior to the race here are a few visualizations to help you set your plan. Running your best marathon is part art, science, guts, faith in what you can do, and a little luck. Running your best 10k is mostly about fitness. The best analogy I can think of is this: if you have trained your body properly with the right mix of aerobic level training and some up tempo stuff in recent weeks, you have built your efficient hybrid engine ready to race the marathon. Many of you have driven in a Prius and watch the subtle shifts between gas and electric on the screen. You do not perceive these shifts. Your engine runs on gas, electric, or a mix- depending on the effort.
You are starting the race with one gallon in the tank- assuming you have eaten a nice meal the night before with a breakfast top off.
The glucose utilizing pathway is the gas. This is your stored glycogen and blood glucose (pasta meal and breakfast) – easy to access for ready energy. The fat utilizing pathway is the electric. In marathons you must be in hybrid until the last few miles. Hybrid is where your energy is coming from both sources.
Many runners are in great “10k shape” (an all gas event), then run their marathon in the gas mode- and usually crash. Glycogen sparing strategy need not apply in races of less than an hour as long as you had a good pre-event meal to fill the tank. In marathons and ultras- top end fitness matters little and can only be applied very near the finish. Glucose gives 36 ATP per molecule, fat 460 ATP per molecule. You must tap into the fat burning tank. Now you know how a bird can migrate 7000 miles without an energy bar.
So how do you know you are running in your best hybrid mode?
This is difficult because the sense is not as profound as aerobic/anaerobic. A slight increase from your optimal pace will switch you from hybrid to all gas without you realizing it, and the effects are felt miles later. Charging up hills early will tap your gas quickly. If you want to speed up early…don’t. Relax and maintain effort, not speed.
You must rehearse a bit in training. I focus on relaxation and breathing. If I’m breathing one cycle to 5 steps, then I’m hybrid. If I’m breathing faster I’m using mostly glucose as fuel. Belly breathe- allow lower belly to blow up like a beach ball on inhalation and pull your belly button back to your spine on exhalation. Then you will fill the lower lung areas where oxygen exchange occurs. Notice the breathing efforts of those around you and many are rapid breathing- they tend to suffer somewhere past half way. Rehearse complete relaxation from the top down- eyes, jaw, shoulders, allow your legs to relax and extend behind you, relax and soften your knees and ankles. Find you own cue for this. If you use the Heart Rate Monitor in training strongly consider one during the event.
In a marathon, the last 3-4 miles you will be all gas to maintain the same speed as fatigue sets in. The breathing is usually on a 3 to 4 steps per breath cycle- that is OK. Still stay relaxed and use the cues that you have rehearsed to keep your form. Your heart rate is higher now. Speed up only when you can “smell the barn”, maybe after 20 miles.
Land softly, especially on the early downhills. I run with a forefoot/midfoot landing harnessing elastic recoil. Focus on posture and hip extension. Use a slight forward lean from the ankles. I’m never sore after marathons now and feel I can keep doing them until I enter the retirement home. I won the Air Force Marathon in 2:38 four weeks ago and feel fine now for another effort. With good form it is “No pain…thank you”.
Your shoes matter too. I will be running in the zero-drop Newton MV2, which I wore with comfort and success at the Air force Marathon. Not that you are going to change your shoes in the next day based on my advice, but make strong consideration to not running in minimalist racing flats, unless you have trained substantially in them and adapted to a natural barefoot style gait. I advocate gradually adapting all of your training in the more minimal and level shoes. If you relax your lower legs and load the springy tendons in your feet and Achilles, then these shoes with no heel elevation put you in perfect position to allow natural elastic recoil of plantar fascia, Achilles, calf muscles, and hip flexors.
New research and runner’s experience is now making the case for running with a more efficient stride and questions modern running footwear. The evolving world of modern sports medicine is going back to the future too and rediscovering what evolution has taught us.
Now a few extra ways to get from start to finish quicker on the same gallon.
The fun of the marathon is that we are always learning and enjoying the adventure of it. I’ve done over 70 marathons now with a couple under 2:25 in my younger years. (i just turned 45.) I’ve had the pleasure of running this race 20 times representing the US Air Force. My only misses were for military duties and a foot surgery many years ago. We learn from experience, taking chances, and occasional failures. My first marathon was the 1988 Marine Corps was 2:34, when I could run about 30 minutes for 10 kilometers. Twenty-three years later I hope to get near this time again and my current 10k is about 35 minutes. In the last 23 years I’ve run a marathon under 2:40 every year except for my year of medical internship when there was no time to find a race. Twenty-one of those years were under 2:35. I’ve learned a few things in 20 plus years on how to train and race efficiently and economically, but still there are uncertainties every time you line up. So relax, taper up, and seize the day.
I’d like to especially thank all the Armed Forces Members around the world who sacrifice daily in the service of their country and for all the volunteers who make the Marine Corps Marathon an incredible event. Thank the Marines you see around the course and that in itself will give you added spirit.