Running & Body Weight

18 03 2008

When I was running marathons in the 80’s, my body weight then was 137-140 pounds. I was “lean and mean” and did not have so much fat in my body then and I was running 3:30:00-3:45:00 hours for the marathon; 1:30:00-1:40:00 hours for the 20K; and 39:00-42:00 minutes for the 10K. At present, my body weight is 155 pounds and I am trying to reduce weight (by running) in order to be competetive and reduce my PR time in future races.

In my readings and reasearch on running, for the elite runners (men), their racing body weight is determined by this widely used “rule of thumb” which is the 2:1 ratio—two pounds of the body weight for every inch in height. As applied to my body, my height is 67 inches multiplied by 2, and the result is 134 pounds! For the advanced runners & weekend runner (men) who wants to compete in their respective age categories, the ideal racing body weight is computed as the total of the 2:1 ratio plus 10% of the body weight. As applied to my body, the product of 2:1 ratio is 134 pounds plus 10% (of 134 lbs) is equivalent to 147.4 pounds. If I am seriously considering myself in this category of advanced runners, I should be able to reduce at least 7 pounds from my present weight.

For elite women runners, the formula that works very accurate to men’s elite does not apply to them. Women have a different body fat and body muscle make-up. But this is a suggested reference as the racing body weight for female elite runners—use 5 feet height as the base height and the equivalent of 81 pounds as the base weight. For every inch increment in height means an additional of 5 pounds from 81 pounds (base weight). As an example, the average racing body weight of a 5′ 4″ feet woman should be 81 plus 20 which is 101 pounds. For the advanced and weekend runner who wants to compete in their respective age categories, the suggested formula/reference is the same with the women elite runners but the base height is 5 feet at 90 pounds as the base weight and for every increment of one inch means an additional 5 pounds from 90 pounds. As an example, for a 5′ 6″ feet woman, her average racing body weight should be 90 pounds plus 30, which is equivalent to 120 pounds. 

I hope this information will be helpful to those who want to excel in the sports of running. Keep on running!


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5 responses

19 03 2008
chefsy

holy cow! This just means I have a long way to go in order to lose the weight and get it going for marathons! I have never thought that weight is such a huge factor back when I was in the track and field, I was just basically losing weight, having fun but for now , i have realized so much more..

I’m a 140 lbs due to steroids which weight gain and deterriorated my endurance, stamina due to allergies and tapering. I’ve yet to get back to a 105 lbs! I sure do hope it’ll be gone out in no time!

What’s the best runners diet? ….. burn, burn, burn.

23 05 2008
heatherdaniel

So for a competitive weekend runner woman who is 5 feet 4 inches… I should be 110 or so?
Hmmmm. Not far off! Just got to keep up the good diet and the good running. Thanks for the article.

24 05 2008
kingofpots

heather, thanks for the visit. the body weight really plays a big factor in one’s ability to improve his/her finish time in road races. good luck on your diet & running. happy running!

15 12 2011
Christopher White

Great! I have unwittingly been at the perfect male elite weight: 5’7.5″ and 135 for the past 10 years of running. So why have I never run elite times??? 5k PR 19:24, 10k PR 41:36, both in my late 30s at mile-high altitude. I guess losing weight is not my answer. :~)

1 11 2014
christmas tree

christmas tree

Running & Body Weight | Bald Runner

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