Body composition plans and caliper tests
Sell body composition testing as a plan, record caliper and tape tests by six different methods, and chart the results.
Body composition testing in TelosGym is sold as a plan — a block of tests a client buys, using one particular method. A test can only be recorded against a plan the client holds, which keeps the testing and the paying joined up.
1. Create your plan types
In the staff dashboard, go to Personal Training → Body Composition.
- Name and Description.
- Method — see below. Fixed for the plan.
- Number of tests — how many tests the purchase covers before it needs renewing.
- Price.
- Active (visible for selling).
The method belongs to the plan, not to the individual test. A client on a 3-site plan gets 3-site tests, which keeps their results comparable over time — exactly what you want when you're charting a trend.
2. The six methods
- US Navy (tape): Tape measurements — neck and waist for men, plus hip for women
- BMI estimate (Deurenberg): Nothing beyond height, weight, age and sex
- 3-site (Jackson-Pollock): Calipers — chest, abdomen, thigh for men; triceps, suprailiac, thigh for women
- 4-site (Durnin-Womersley): Calipers, four sites
- 7-site (Jackson-Pollock): Calipers, seven sites
- 9-site (Parillo, beta): Calipers, nine sites
The measurements TelosGym asks for change with the client's sex, because the formulas genuinely differ. That comes from the client's profile, so it needs to be set before testing.
💡 BMI estimate needs no measurements at all beyond the basics, so it's a reasonable free plan to offer everyone. The 9-site Parillo method is marked beta — worth knowing before you build a paid plan around it.
3. Sell a plan to a client
From the client's Body composition tab, use Buy a plan and pick one of your plan types.
- Priced plans go through cash or card. Card sends the client to Stripe Checkout, the same as session packages.
- Free plans skip payment entirely.
A client can hold more than one purchase, so someone can be on a tape plan and a caliper plan at the same time.
4. Record a test
Pick the purchase you're testing against, then fill in the measurements for its method. TelosGym works out the body fat percentage and stores the raw numbers alongside it, so the result can always be traced back to what you actually measured.
You can't record a test without selecting a purchase, and each test uses one of its tests remaining.
Add notes for anything that affects the reading — time of day, hydration, whether they'd trained that morning. Body composition numbers move around, and next quarter you'll be glad you wrote it down.
5. See the trend
Above the test history there's a body-fat-over-time chart, colour-coded by method, with the full list of past tests underneath — date, method, body fat % and notes.
The colour-coding matters: numbers from different methods aren't directly comparable, so a jump in the line might just be a change of method rather than a change in the client.