Unofficial Weigh In

I didn’t weigh in at Weight Watchers since I didn’t want to have to dress for it.  When I weigh in, I wear the same thing and then change at the meeting.  I didn’t want to do that today since I didn’t have to weigh so I didn’t.  I was tempted though because I would have shown a loss.

At home (no clothes), I weighed 146.2 pounds which is down .4 pounds from what I weighed at home at my last Weight Watchers weigh in.  This is notable for 2 reasons.  First, it is the lowest that I have been since having my liposuction.  I think that most of my swelling is gone now.  I sometimes have some during the days, but I’m good in the mornings usually.

I also note that this is my lowest weight in mid-February!  This was my 9th week in a row with a calorie deficit (per Fitbit and MyFitnessPal information). This was also my 4th week back to strength training and 8th week of cardio exercise  It is nice to see those things showing up on the scale.

When I love back at February, though, I must admit a have a pang when I realize I was last below 146.2 pounds then because I was going up in weight.  In early February, I had weighed 140.7 pounds at home putting me back to my post tummy tuck baseline.  By mid-February I was, alas, at 146.1 pounds.  Yes, I was up over 5 pounds in 9 days and I just kept going on.  So glad that the last several weeks I’ve been working on going down and not up.

Overall, this was a good week.  I actually didn’t have as many cardio sessions as usual, mostly because of the day that I went and did all the testing at Dexafit.  This was my best week, though, for strength training so I was glad about that.  I’ll be doing a post soon about what my plans are post-Dexafit testing.

But, at this points, I am just happy to be at my lowest weight in over 7 months.

My Fit3D Scan of My Body

I posted previously about my testing at Dexafit on Monday. I did an initial post before hand about what I was planning to do.

I had body composition testing using the dexa (DXA scan) which is here.

And, I had my resting metabolic rate tested which is here.

The final thing I had done was a scan of my body using the Fit3D scanner.  This scanner takes pictures of your body and takes hundreds of measurements.  From this, a 3D avatar is created of your body.  The information is sent to you privately at Fit3D.  You can log in and get a lot of information, including measurements of core body parts.  In addition, you can download a spreadsheet with lots of other measurements. You can also download your 3D avatar.

Under my Dexafit plan, I can get a Fit3D scan once a month.

I actually really like the scan and think it will be very motivating to me to want to improve my avatar and my measurements each month.  I will go into some detail here about the Fit3D scan as I didn’t find much online about it beyond basic information.

The Scanning

The scan is done in a room privately.  I went in and first created a Fit3D account on a touchscreen by the scanner.  For the scan, you stand on a round disk, hold handles with arms straight and then simply stay still while you rotate around for 40 seconds.  At that point, you are done.

Here is a photo of me on the scanner before I did the scan.

If you look at my feet you can see 2 white feet shapes on the round base.  You stand on those (without socks) for the machine to get your current weight. [Read more…]

Resting Metabolic Rate Test Result

I am posting about my results from my Dexafit visit today. I previously posted about what I was having done and why.  This post is about the results of my resting metabolic rate testing.  Other procedures:

Body Composition through dexa (DXA) scan which you can find here.

I also had a Fit3D scan done which is here.

In the post I did on my body composition and body fat percentage I said that I was surprised about the result.  However, I indicated that it was not the most surprising result from the testing.  The most surprising result was that which showed my resting metabolic rate.  I was actually gobsmacked by the result.

But, before I get to that:

Why Do a Resting Metabolic Rate Test

Online you can find a lot of calculators that can tell you what your resting metabolic rate (RMR) is (or your basal metabolic rate – they are not identical but are treated as interchangeable for this post).  These calculators are useful since they are free and for most people are probably reasonably accurate.  The one I see used most often uses the Mifflin St Jeor equation.  And, that is the equation that Fitbit uses to estimate your resting metabolic rate which is the number that underlies all of the calorie burn information you get from Fitbit.  That is, how many calories you burn during exercise is based upon a factor applied to your Mifflin St Jeor RMR.

Another calculator that I like is the Katch McArdle calculator which uses weight and body fat percentage to determine RMR.  Most calculators, including Mifflin St Jeor, use age and height instead of body fat percentage since most people don’t know their body fat.  Age and height act as a proxy for body fat.

Calculators are useful but are not accurate for everyone.  The Mifflin St Jeor equation (or similar equations) don’t really deal well with the fact that some people burn less calories than expected because they have unusually high body fat.  And, they may not be that accurate for those with unusually low body fat.  Katch McArdle rectifies that problem, but it necessarily requires an accurate body fat percentage.

And, there are unknown factors that impact RMR other than the factors used by the calculators.  This study sought to determine what factors influence the variation in basal metabolic rate.  Basically they found 63% of the difference in BMR between subjects was due to differences in fat free mass, 6% was due to differences in fat mass, and 2 % was due to differences in age.  For women, 26% of the variance in BMR was unexplained.  That is, it wasn’t explained by the factors that are used in the typical RMR calculators.  They did look at some other possible factors (such as age, bone mineral content, and leptin) but those factors didn’t explain the difference.  Calculators can be useful, but I felt that actually testing my RMR would give me a more valid result given the individual variance that can exist for metabolism.

It is useful to get a valid RMR because that would help me to know how many calories I burn each day and would help me to make sure I have a calorie deficit.

The Test Itself

I had previously done an RMR test a couple of years ago.  This one was quite similar.  True RMR tests use indirect calorimetry. Basically you breathe into a face mask for a period of time and a machine measures the amount of oxygen your body uses and the amount of carbon dioxide your body produces and, from that, can determine your resting metabolic rate.

I did this test after doing the dexa scan.  Because I was doing this test, I had been told not to eat or drink anything after midnight other than water.  There are also restrictions on activity before hand.  Basically they didn’t want you to have eaten or exercised within a certain amount of time before the test because those activities increase your metabolism.

They had me sit in a recliner and breathe into a face mask for 18 minutes staying as still as possible.  It was actually very relaxing as the recliner was reclined back and was super comfortable.

This is how the mask looked:

 

[Read more…]

Dexa Scan Body Composition Test Results

Today, I visited Dexafit and had 3 things done.  First, I had a dexa scan (DXA scan) done to determine my body composition, including body fat percentage.  Then, I had my resting metabolism tested.  Finally, I had a Fit3D scan which made lots of measurements of my body.  The whole thing was incredibly interesting and informative and I think getting updated results over time will be very motivating.  Since this is all long I will do a separate post for each procedure.

Here is the post for my resting metabolic rate testing.

And, here is the post for my Fit3D scan.

The Dexa Scan

I will start with the dexa scan.  I described the dexa scan in my prior post talking about the upcoming testing.  The scan was pretty much what I expected from the scans I had previously had for bone density purposes.  You lay on a table very still.  I took off and my shoes and my ankles were actually strapped together and I was told to put my hands underneath my posterior.

[Read more…]

Dexafit Testing Upcoming

On Monday, I am scheduled to have some testing done: body composition through dexa scan (also called DXA scan), resting metabolism, and Fit3d.  I am having them done at my local Dexafit location.

September, 2015 Testing

In September, 2015, I had my body composition tested using the Bod Pod and had my resting metabolism also tested.  I posted then in advance of that testing.  After the testing, I posted about my results having found (as I expected) that I was skinny fat.  That is, I was basically normal weight with a really high body fat percentage. [Read more…]