10 fitness lessons from 10 DEXA body sans

Ryan Pfister
Oct 28, 2018 · 5 min read

Since May 2017, I’ve gotten 10 DEXA scans of my body to monitor my fitness progress. Here’s what I’ve learned from each one.


Prep for Scan 1: Time to get started. I don’t think I’m cut, but I don’t think I’m that out of shape either. Let’s see what DEXA says.

Image for post
Image for post
Scan 1

What I learned: Ugh, my body fat percentage is really high. Time to start burning fat!


Prep for Scan 2, 25 days later: Let’s try 16/8 intermittent fasting with lots of walking but no lifting. I actually became an on-foot Postmates delivery person on my walk home from work just to add more walking. Some days I would fast beyond 16/8 (e.g. skipping dinner).

Image for post
Image for post

What I learned: Wooo! I lost 15 pounds of weight! I can lose weight! But ugh, look at all that muscle I lost. I’m going to be skinny fat at this rate. Need to do something to keep that muscle!


Prep for Scan 3, 18 days later: OK, no more skipping dinner and let’s try doing lots of push-ups and pull-ups.

Image for post
Image for post

What I learned: Ugh, still losing muscle along with my fat. Need to stop fasting until I can learn how to preserve muscle.


Prep for Scan 4, 29 days later: Let’s stop fasting but do some pull ups and pushups while I figure out what to do next.

What I learned: Ugh, more fat came back than muscle. Need to figure out a new theory. Maybe I was doing the fast over too long a period. Maybe I need to do a concentrated fast over two days.


Prep for Scan 5, 2 days later: Ok, I haven’t eaten for the past 60 hours. Hurry up and get this scan done so I can EAT!

Image for post
Image for post

What I learned: OH COME ON! SCREW YOU FASTING! THIS IS THE NAIL IN THE COFFIN. IT DOES NOT WORK. Time to eat healthy and get serious about weight lifting to get that muscle back.


Prep for Scan 6, 40 days later: I’m all in on StrongLifts. Workout 3 times a week. I am CRUSHING those weights. 5 pounds up every time. Eating 3 squares a day, trying to stay low carb.

Image for post
Image for post

What I learned: YESSSSSS! GAINS GAINS GAINS! Oh yeah, I have a plan now. Sticking with this! (In hindsight, I think I had a huge advantage here gaining back muscle that I had so recently lost.)


Prep for Scan 7, 93 days later: Keep on lifting and eating!

Image for post
Image for post

What I learned: Oh yeah! Look at those muscle gains! But wait…6 pounds of fat back too??? Ugh. This is hard!


Prep for Scan 8, 54 days later: Let’s try a “cutting phase.” Eat less food but keep lifting. Over the holidays.

Image for post
Image for post

What I learned: Argggggggh the muscle went away again! Maybe it was because I was travelling over the holidays and missed some workouts. Maybe I didn’t diet right. Who knows? Ugh, I give up. Screw you DEXA.


Prep for Scan 9, 244 days later: Ok, 8 months later I’m finally back to try again. Over the summer I read Eat Stop Eat, the bible of 5/2 fasting, and I’m ready to put it to the test. For 6 weeks, I did StrongLifts religiously 3 times a week and fasted for 24 hours every third day (which is actually slightly more aggressive than he recommends). Here goes…

Image for post
Image for post

What I learned: …holy crap. It WORKED. 4+ pounds of fat lost, barely and muscle lost. OK, but let’s see what happens next time. I’ve been here before…


Prep for Scan 10, 32 days later: Lazier version of the above. Twice a week, did reverse pyramid training (less time than Strong Lifts) and didn’t eat for 24 hours. I basically had two fitness willpower days and the rest of the days I did whatever I wanted. After such a lazy month I’m hoping just to stay steady on my stats.

Image for post
Image for post

What I learned: WOW. It’s still working! Down in fat, up in muscle! DEXA, how could I have ever hated you?? Let’s never fight again.


What my results look like in the mirror:

Image for post
Image for post
Front at start of scans: May 7, 2017
Image for post
Image for post
Front after scan 10: October 26, 2018
Image for post
Image for post
Side at start of scans: May 7, 2017
Image for post
Image for post
Side after scan 10: October 26, 2018

My personal conclusions:

These may vary from person to person but they work for me.

While I’m dieting I need to be 100% disciplined about working out. I don’t have to work out all the time, but I need to remind my body to keep my muscles in close proximity to when I’m in caloric reduction. As I learned over and over above, my body will eat into my muscles if I’m not working out.

I need to do a full body workout, preferably with heavy weights. Just doing some pull ups and push ups every day wasn’t enough.

Regular DEXAing was hugely helpful. It helped me know what was working and what wasn’t. Also, knowing I had a scan coming up was a big motivator to stay on track.

Welcome to a place where words matter. On Medium, smart voices and original ideas take center stage - with no ads in sight. Watch

Follow all the topics you care about, and we’ll deliver the best stories for you to your homepage and inbox. Explore

Get unlimited access to the best stories on Medium — and support writers while you’re at it. Just $5/month. Upgrade

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store