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VO2max

The monthly newsletter of RunCoachJason.com

Jason Karp, professional coach, consultant, freelance writer

December, 2006

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In this issue:

VO2max Distance Running Clinic

Holiday Gifts

VO2max and Mileage

Race Pace

In Press

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VO2max Distance Running Clinic

On December 2nd, 2006, RunCoachJason.com will hold its first annual VO2max Distance Running Clinic for runners and coaches at the University of New Mexico in Albuquerque.  Speakers include professional coach, writer, and Ph.D. candidate Jason Karp, exercise physiologist Dr. Robert Robergs of the University of New Mexico, and U.S. Masters record holder and 2:08 marathoner Mbarak Hussein of Kenya.  For more information, go to http://www.runcoachjason.com/clinic.

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Holiday Gifts
Know someone who wants to lose weight or become a faster runner?  Why don’t you give him or her (or yourself) a personal trainer or coach as a holiday gift?  I offer a number of online and in-person personal training and coaching services, based on individual needs and goals.  I will customize an exercise or training program specifically for you (or your friend).  To purchase personal training or coaching sessions or my popular customized training programs for beginner, intermediate, and advanced levels, go to http://www.runcoachjason.com/coaching.

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VO2max and Mileage

If you’ve been training for a while, chances are that your VO2max has plateaued.  VO2max is a pretty stable parameter, with further improvements in performance resulting from improvements in other physiological variables like lactate threshold and running economy.  While the exact volume of training at which VO2max plateaus is individual, a number of researchers have suggested that it plateaus at about 70 miles per week.  Any training above this won’t likely improve VO2max unless you include more intensity.

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Race Pace

(excerpted from Karp, J.R. The Errors of Our Running Ways. Running Times. July/Aug. 2006, 338, pp. 28,30-33.)

 

I used to coach a talented runner who ran the first mile of every race too fast, only to slow down dramatically during the latter segments and end up disappointed with the result.  He thought he was better than his workouts and he let his competitive spirit and pre-race adrenaline obscure his knowledge of his true fitness level.  It was frustrating to watch him start off so well and get slower with each successive lap of the track.

 

The faster you run the first mile of a race, the more your muscles rely on anaerobic metabolism to produce energy.  With the greater reliance on anaerobic metabolism and muscular work comes an increase in muscle and blood acidosis and the accumulation of metabolic by-products that cause fatigue.  Whether the race is a mile or a marathon, you can’t put running time in the bank.  You will end up losing more time in the end than what you gained by being “ahead of schedule” in the beginning.  No matter how strong your will is, the metabolic condition caused by running too fast too early will force you to slow down during subsequent stages of the race.  

 

Although race strategy sometimes dictates that you change the pace during the race to challenge your competitors, the best way to run your fastest possible race is by starting out at the pace you can maintain the entire race.  While it may feel easy, especially in the marathon, to run the first mile of your race at the same pace as the last, your patience will pay huge dividends during that last mile.  Ideally, the second half of your race should be equal to or slightly faster than the first half (i.e., negative splits).  To negative split a race requires accurate knowledge of your fitness level, confidence to stick to your plan when others have taken the early pace out too fast, and a good dose of self-restraint. 

 

When you race, you don’t run at some arbitrary intensity.  The percentages of your VO2max and lactate threshold you can sustain for a specific amount of time are predictable.  The longer the race, the lower the percent VO2max at which you’ll run it.  Research has shown that the speed at VO2max can be sustained for only about 8 to 10 minutes.  Talented, highly-trained runners therefore race 3,000 meters at 100 percent VO2max, 5,000 meters at 90 to 95 percent VO2max, and a marathon at 80 to 85 percent VO2max (about 95 percent of lactate threshold).  Your workouts, which should be performed at specific speeds that correspond to specific percentages of VO2max or lactate threshold, are invaluable for providing you with knowledge of your fitness level and for predicting your average race pace (assuming you account for such things like the terrain and the weather).  As I tried to convince my overzealous athlete, your workouts don’t lie. 

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In Press...

Training Characteristics of U.S. Olympic Marathon Trials Qualifiers, my research article documenting how the best marathoners in the U.S train, with comparisons made between men and women and elite and national-class runners, appears in the Winter, 2007 issue of Track Coach, the official technical publication of USA Track & Field.

 

The Errors of Our Running Ways, my article that examines four common mistakes—going out too fast in a race, doing speed work without first doing enough aerobic mileage, running workouts too fast or too slow, and not eating after a workout—with advice on how to correct them, appears in the Fall, 2006 issues of Duke City Fit, Colorado Runner, Florida Running & Triathlon, and The Coach, the United Kingdom’s track and field coaching magazine.

 

My Fitness News contributions on muscle tone, the health benefits of cardiovascular exercise, and exercise and metabolism appear in the December, 2006 issue of Oxygen magazine.

 

My Fitness News contributions on exercise and bone density, muscle fibers, fat-burning zone, and how fat burns in a carbohydrate flame appear in the January, 2007 issue of Oxygen magazine, on newsstands in December.

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To view past newsletters, go to http://www.runcoachjason.com/newsletter.

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To unsubscribe from this newsletter, e-mail jason@runcoachjason.com with the word “unsubscribe” on the subject line.

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©2006 Jason Karp.  All rights reserved.

 


   


 

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