§ 01
Body Composition
Clinical fitness assessment

Weight

Measure body mass for BMI, body fat formulas, and strength-to-weight ratios.

Equipment

Calibrated digital scale.

The protocol
  1. 01Calibrate the scale to zero before use.
  2. 02Client wears minimal, light clothing and no shoes.
  3. 03Client stands centred on the scale, arms at sides, looking straight ahead.
  4. 04Wait for the reading to stabilise.
  5. 05Record to the nearest 0.1 kg.
What to watch for
  • Client holding onto something or leaning.
  • Scale not on a flat, hard surface (carpet can affect readings).
  • Weighing at inconsistent times of day — morning fasted is most reliable for retests.
Normative scoring

Weight alone is not normative. Use in combination with height for BMI classification: Underweight <18.5, Normal 18.5-24.9, Overweight 25-29.9, Obese ≥30.

Run it with GainPT

Run this test with branded client reports.

GainPT scores Weight against published normative data and turns it into a clean, GainPT-branded PDF your client keeps. All 47 clinical tests, unlimited retests — free to start, no card required.