Insanity Starting Statistics


Common body measurements

Since Sundays are off days for Insanity, I decided to write about other related topics in place of writing about them. I thought a good place to start would be something I left off my post about the first day, my starting statistics. Taking measurements was something I didn’t do for my first Insanity attempt, and I wanted to this time. Besides, documentation of the before and after of certain measurements is required on the application for the free Insanity t-shirt.

While I took my measurements the day before starting the Fit Test, I did them according to some instructions I had found online. Before my workout on day three, I was on the Team Beachbody forum and found a post that includes a video of the methods Beachbody prefers for taking measurements so everyone is consistent. Some of these methods, like those for chest, hip, and thigh, gave me slightly different numbers than my original methods, so some of the results are from day three instead. Due to the fact the calculators from which I derived my body fat number used some of those measurements, I recalculated that as well.

The required statistics and my results were:

Weight: 120 lbs

Size (pants): 5-7

Body Fat: 16.1%

Chest (in): 34

Waist (in): 29 (They didn’t specify so I used at narrowest)

Hips (in): 36

Leg (thigh) (in): 21

Arm (bicep) (in): 11

About Body Fat Percentage:

Body Fat Percentage

A bit about body fat %

I used several different body fat percentage calculators to try to get a good estimate. Even when calculators asked for the some of the same statistics, the results varied widely from 2% to 28%. The most common method of calculating cited was the U.S. Navy’s formula, but even those results were varied. Of my sample, I found two calculators that provided similar numbers, and I took the average of those to get the number I used. The calculators I used were at and

As I was plugging my numbers into these calculators my husband told me I shouldn’t even worry about it. I wouldn’t try to find a location on a map with random pinpoints so I shouldn’t trust body fat percentage calculators for my body fat. He said a water displacement test is the only really accurate method for calculating body fat percentage. Apparently we actually have one of the machines for the test at the clinic on post, and I can make an appointment to have a water displacement test and fitness test done. I know I am not overweight so I am not too concerned. I was just looking for an estimate to have something to track, but maybe one of these days I’ll do that to see where I’m at.

I’ve heard it said that you don’t know where you’re going until you know where you’ve been. Now that I have before pictures, and numbers for where I started, I’m interested to see how things will compare at the end of the program.

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