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Xtheory

How it works

Thirty minutes, and you leave knowing where you stand.

Roughly ten minutes for setup and scanning, and around twenty with an expert going through what the numbers mean. The review is included in every 30-minute appointment.
Book a Scan

What an appointment looks like

The entrance at Xtheory Walnut Creek: an open door, coat hooks, seating and a reception counter.
01 — Arrive
A scan in progress, seen from the foot of the bed as the scanning arm passes overhead.
02 — Scan
Two people at a desk looking at a body-composition report on screen, one pointing at the display.
03 — Review

The process

Measure. Understand. Improve. Re-measure.

The last step is the one most people skip, and it is the only one that proves anything.
  1. 01

    Scan

    Complete your DEXA scan.

    You lie still and fully clothed on the scanner bed while the arm passes over you. Roughly ten minutes covers setup and the scan itself.

  2. 02

    Understand

    Review your results with an expert.

    Around twenty minutes with someone who reads these scans regularly. They walk you through your report line by line and answer questions in plain language.

  3. 03

    Act

    Identify what is worth focusing on.

    You leave knowing which one or two numbers are worth your attention, and what would plausibly move them.

  4. 04

    Measure Again

    Return later to see what actually changed.

    A second scan turns a single snapshot into a trend, and settles whether the plan is working.

On the day

What the appointment actually looks like.

Times are approximate — the review runs as long as your questions need within the appointment.
  1. Minutes 0–5

    Arrive and get set up

    Check in, confirm a few details from your intake form, and get positioned on the scanner bed. You stay fully clothed.

  2. Minutes 5–10

    The scan

    You lie still while the scanner arm passes along the length of your body. Nothing encloses you and nothing touches you.

  3. Minutes 10–30

    Your expert review

    Your report is ready within moments. The rest of the appointment is spent going through it with someone who reads these scans regularly.

  4. After

    Digital results

    You keep a digital copy of your report, and a private link to manage or reschedule any future appointment.

Included with every scan

A report you understand, not a PDF you file away.

Plenty of places will scan you and email a document. The measurement is the easy part — reading it correctly is where the value is. Every Xtheory appointment includes a sit-down review with someone who reads these scans regularly.
  • 01What each metric on your report actually measures
  • 02Which numbers are worth your attention, and which are noise
  • 03Where the clearest opportunities appear in your data
  • 04What to watch as you re-scan over time

Your review explains your measurements. It is not a medical diagnosis, and it does not replace care from your physician.

Before you come in

How to prepare.

Nothing complicated. The main thing is repeatability.
  • 01Wear comfortable clothing without metal — no zips, underwire, buckles or heavy hardware.
  • 02Leave jewellery at home where you can, or plan to remove it before the scan.
  • 03Arrive a few minutes early so setup does not cut into your review time.
  • 04[PLACEHOLDER — pending confirmation] Guidance on eating, hydration and training before your scan.

Your baseline starts here.

One appointment gives you a precise measurement and someone to explain it. Everything after that is easier to decide.

Book Your DEXA Scan
  1. 01Measure
  2. 02Understand
  3. 03Improve
  4. 04Re-measure