Book at DexaFit Orange County.
Pick a single test, Two Together, or a pack, then choose a time.
Same Day Special: $40 off your next order when you book and pay within 24 hoursOne $40 credit per order, not per test. Applies to DEXA, RMR, VO₂ Max, or Kinotek. Not shareable.
Labor Day Special pricing ends October 31.
What to expect
Three tests. The full readout.
What each test measures, and why the result earns a place in your plan.
DEXA Body Composition Scan
Fat, lean tissue, and bone broken down region by region at within 2 percent accuracy.
VO₂ Max Test
Your true aerobic ceiling, measured directly, with heart-rate zones built around your number.
Resting Metabolic Rate (RMR) Test
The calories your body actually burns at rest, so your nutrition plan starts from real numbers.
Before you arrive
How to prepare for each test.
A little prep keeps your numbers accurate. Prep differs by test, so follow the notes for the one you booked.
~ 8 minutes
total appointment time 20 minutes- Fast for about 2 hours before your scan; water is welcome
- Come in normally hydrated, neither over nor under
- Keep any movement light; save the hard workout for after
- Wear metal-free clothing (leave belts, watches, and jewelry at home)
- Bring a pair of socks; you'll rest flat on the scanning table
- No imaging contrast agents in the 48 hours before your scan
~ 15 minutes
total appointment time 35 minutes- Fast for about 3 hours before your test; water is fine
- Hold off on any workout on the day of your test
- Get a solid night of sleep the night before
- Skip caffeine and other stimulants that day
- Wear athletic shoes and clothes you can move in
- Your effort takes place on a treadmill or cycle ergometer
~ 15 minutes
total appointment time 25 minutes- Fast for about 5 hours before your test; water is fine
- Rest beforehand and avoid exercise that day
- Prioritize sleep, and choose a morning slot when you can
- No caffeine, stimulants, or alcohol in the 12 hours prior
- Wear relaxed, loose-fitting clothing
- You'll breathe into a mask while seated calmly for about 15 minutes
Quick answers
Good to know.
The core trio: a DEXA scan for body composition, a VO₂ Max test for cardio fitness, and an RMR test for metabolism. Each is a clinical-grade reading, and you review your results with a specialist during the same visit.
Yes. Two Together books you and a partner, friend, or training buddy into the same appointment, so you test back to back and each get your own results.
Packs let you buy several tests up front at a lower price and book each one when it suits you. Memberships cover ongoing sessions on a monthly plan. Both live under Packs and gifts above, along with gift certificates.
For a DEXA scan, avoid eating for about 2 hours beforehand. For a VO₂ Max test, hold food for about 3 hours. For an RMR test, come in fasted for about 5 hours. Wear comfortable clothing with no metal, and bring water.
DexaFit Orange County is at 18001 Sky Park Circle, Suite K, Irvine, CA 92614, near John Wayne Airport. Hours are Monday, Tuesday, and Thursday 7:30am to 4:30pm, Wednesday 7:30am to 3:00pm, Friday 7:30am to 3:30pm, and Saturday 7:30am to 12:30pm. Closed Sunday.
Find us
DexaFit Orange County
On Sky Park Circle in Irvine, near John Wayne Airport, serving Irvine, Newport Beach, Costa Mesa, and Tustin.
- Mon, Tue, Thu7:30am to 4:30pm
- Wednesday7:30am to 3:00pm
- Friday7:30am to 3:30pm
- Saturday7:30am to 12:30pm
- SundayClosed
Get DexaFit Orange County
Know your body.
Measured in Irvine.
Book your DEXA, VO₂ Max, or RMR test at DexaFit Orange County, then leave the same visit knowing exactly where you stand.