Reserve your time.
Read your body.
Clinical-grade DEXA, VO₂ Max, and RMR testing on Forest Creek Dr, Suite 501. The measurements that reshape how you train, recover, and age.
vs. 8 to 15% error on smart scales
that may be lean muscle
least-fit group vs. the most fit*
RMR, why nutrition plans stall
How it works
Measure. Track. Discover.
From the moment you book to the moment you walk out with answers, here is what the visit looks like.
Choose your tests
Take one, or combine two or three in the same visit for a fuller reading of your body.
Visit and get tested
Most tests last 8 to 15 minutes. No needles. DEXA, VO₂ Max, and RMR are each non-invasive. Show up prepped per your session guide.
Walk out with your report
Every figure arrives with context: what it means and the move it points to. Not raw output, but a clear next step.
Before you arrive
How to get ready for each test.
These steps safeguard the accuracy of your numbers. Skipping one, even a little, can shift the data.
~ 8 minutes
total appointment time 30 minutes- Hold off on food for at least 2 hours before your test (water is fine)
- Skip exercise beforehand; keep movement light
- Show up well hydrated, not dehydrated
- Wear workout clothes free of metal (no belts, watches, or jewelry)
- Bring socks; you'll lie flat on the scanning table
- No contrast agents in the 48 hours before your scan
~ 15 minutes
total appointment time 45 minutes- Hold off on food for at least 3 hours before your test (water is fine)
- No exercise the day of your test
- Sleep a full night beforehand
- Skip caffeine and stimulants the day of your session
- Wear athletic shoes and exercise-ready clothing
- The test runs on a treadmill or cycle ergometer
~ 15 minutes
total appointment time 30 minutes- Hold off on food for at least 5 hours before your test (water is fine)
- Skip exercise beforehand; rest as much as you can
- Make sleep a priority; morning slots work best
- No caffeine, stimulants, or alcohol in the prior 12 hours
- Wear comfortable, loose-fitting clothing
- You'll breathe into a mask while seated at rest for 15 minutes
Quick answers
Common questions.
DexaFit combines clinical-grade equipment with data-powered reporting drawn from over a decade of real-world data across four continents. Most providers leave you holding a number. We give you the number, the context behind it, the likely drivers, and a clear next step.
Yes. A DEXA scan uses a very low dose of X-ray radiation, well under a standard chest X-ray and close to a few hours of the background radiation you absorb in everyday life. The technology has served hospitals and research labs for decades and is regarded as safe for most healthy adults.
The DEXA scan takes about 8 minutes to administer. With check-in and a walk-through of your results, plan on about 30 minutes total. The VO₂ Max test takes about 15 minutes to administer. With check-in, a warm-up, and a results walk-through, plan on about 45 minutes total. The RMR test takes about 15 minutes to administer. With check-in and a walk-through, plan on about 30 minutes total. Booking all three in one visit usually wraps in an hour and a half or less.
On GLP-1 therapy, the DEXA scan is the one that counts most. It reveals whether the weight you're shedding is fat or muscle, which the scale cannot show. Roughly 1 in 3 pounds lost on GLP-1 is lean mass, and a DEXA tells you whether that applies to you. Adding RMR rounds out the full metabolic view.
Yes, and we recommend it. DexaFit reports use the same clinical technology and terminology that physicians know. Many clients carry their results to a GP, endocrinologist, sports medicine doctor, or dietitian. The data fits straight into a clinical conversation.
Most clients come back every 3 to 6 months to track how their body answers shifts in training, nutrition, or protocol. One visit sets your baseline. Repeat visits reveal what's working, right down to the tissue level.
Find us
DexaFit Round Rock
Round Rock, TX 78664
Get DexaFit Round Rock
The answers are in
your numbers.
One visit. Clinical-grade clarity. The baseline every other choice builds on.
* Mandsager et al., JAMA 2018. 122,007 patients, least-fit vs. most-fit quintile.