Category Archives: VO2 Max and RMR

Using the Breezing to measure my metabolic rate during a fever

 

I learned in medical school that during a fever the body generates heat by revving up it’s metabolism so that for approximately every 1 degree increase in temperature there is a 10% increase in metabolism.

When I first heard that number I was amazed.  This meant that a fever of 103° leads to an almost 50% increase in metabolism!  I thought of all the calories I could burn and how fast it’d be to lose weight.

I probably had an unhealthy obsession with weight loss at the time which is where this came from… I mean, I conveniently forgot how crappy being sick and having a fever actually feels: body aches all over, malaise, being too fatigued to doing anything fun like play videogames or watch DVDs.… Read More

Using the Breezing Metabolism Tracker to measure how many calories BJJ burns

After I picked up the Breezing Metabolism Tracker and fiddling around with it for a while, I was curious to see how BJJ affects my metabolic rate!

Here are links to my previous posts on the Breezing:

If you try to look up the calories in MyFitnesspal, Sparkpeople, or other generic sources, you get something in the range of 800-900 calories/hr.  I’m never sure whether or not to believe this.

While I’m not exactly sure where this table comes from, Tim Bruce has a table showing that:

  • Light Brazilian jiu jitsu burns 3.25 calories per hour per pound of body weight
  • Intense Brazilian jiu jitsu burns 4.87 cal/hr/lb

Who knew that shooting around a basketball burns the same amount of calories as intense weight lifting at 2.72 calories per hour,  while yoga only burns a measly 1.81 calories per hour.… Read More

My Average Resting Metabolic Rate Calculated By The Breezing

A few months ago I picked up the Breezing Metabolism Tracker and was excited by what it could do.  If the device worked as expected, it would be an extraordinarily affordable way to measure my metabolic rate.  The main costs would be $349.90 for the device itself which can be used indefinitely and $5.00 for each sensor, which are one time use.

After forking out the initial cost, each measurement I wanted to run would only cost me $5.00 for the use of the sensor.  In contrast, if I wanted to measure my metabolic rate in a lab it can run anywhere from $50-$100.… Read More

VO2 Max and Resting Metabolic Rate on a Cyclic Ketogenic Diet

Vo2 MaxVO2 Max and Resting Metabolic Rate on a Cyclic Ketogenic Diet

In my never ending quest to learn more about my body (with n=1 experiments, blood tests, and a Dexa Scan) I came across the idea of metabolic testing as another way to provide insight into what my physiology is doing.

Luckily I live near the Cleveland Clinic where they offer metabolic testing for very reasonable prices.  They charge $75 for the resting metabolic rate test and $125 for the VO2 Max test.

They were able to squeeze me in on November 18th, which as you can see fell 9 days after my prior carb up day, in the midst of my 10 week Carb Nite cyclic ketogenic diet experiment.… Read More

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