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Writings on Fitness, Food, and Life

April 14, 2015

One Magic Mile Down

by Jenni in Fitness


My first magic mile
My first magic mile

{via}

Jeff Galloway has created something called the "Magic Mile" as part of his run training programs. What a Magic Mile is meant to do is give you a reasonable expectation of how quickly you can run a 10k, half marathon, or marathon. For a half marathon, you follow a simple formula after getting a few Magic Miles under your belt. 

Jeff has this mile during a 3-4 mile run and places it right in the middle. The goal is to push yourself as hard as you can without huffing and puffing or running in a way that may cause injury. After a few MM's are done, you average that number and multiply it by 1.2. But, in true cart-ahead-of-horse style, I thought I would tell you what my first MM was and what that could mean for the race. OK! 

I ran yesterday in 82 degree muggy heat with a terribly bad stomach ache (note to self, eating strawberry shortcake 2 hours before a run is a BAD idea) but, a determined mindset. I had a goal of running the whole mile and making it a pretty good pace to boot. Well, it was a push and the mile following my MM was not a super fun happy time of magic and rainbows and unicorns cheering me on as I ran, arms open, while singing "The Hills are Alive with the Sound of Music", but I did it. 

My first mile out of the three was decidedly slow at a 10:31 average pace and a 3:1 walk/run rate. Then, the MM came and I ran the whole deal (plus three minutes) and made it a 9:30 pace!! My pace got as quick as 8:30 and as slow as 10:00. Thankfully though, it averaged out to something that I can be proud of. The third mile, however, was not. That guy ended up being a crawl at 11:14. Ha! 

So, if my average stays around 9:30, my push-pace come race day will be an 11:24 per mile pace. Not too bad! I am hoping to have a 12 min/mile pace come race day with being able to do some character pictures. Also, finishing under 2:30 would be a dream!!!

So, have you done the MM before? And, was it close to your race pace?

Comment

TAGS: jeff, galloway, magic, mile, first, what, is, how, to, run, calculate, my


May 20, 2014

The New BMI

by Jenni in Fitness


The New BMI Calculator
The New BMI Calculator

{via}

Have you ever wondered how your BMI, or Body Mass index, accounts for changes in height? Well, according to Oxford mathematician, Nick Trefethen, it does not. Trefethen does not believe our current BMI calculator takes into account that we live in a 3D world, saying that our current BMI calculator does not alternate for changes in height. Meaning the calculator does not show that tall people call take up more space without being fat. 

Unfortunately, the BMI calculator is still flawed since it does not take fat percentage into account either. This means that a person who is naturally thin but never works out could be seen as healthy and a performance athlete can still be seen as overweight or obese. 

Current BMI standards say that a healthy range is between 18.5-24.4, overweight is 25-29.9, and 30+ is obese. The main change that Trefethen's new calculator does is make alterations according to height. With the new BMI calculator he created, height is not measured on a linear scale alone. This change is good news for those who are taller since their BMI just might go down; but, shorter people will likely have an increased BMI. 

My BMI went up about 0.5 from it's usually old BMI standard to the new Trefethen alternative. Did yours change? 

Comment

TAGS: bmi, calculator, height, nick trefethen, new, how, to, what, your, BMI, means, body, mass, index, calculate, tall, vs., short


  • Oh look, @jcrew sent us a cat, and in my favorite color too!! How kind of them 😻 http://t.co/MNEjROeSpE
    Oct 14, 2014, 9:54 AM
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