II. Definitions
- Lean Body Mass
- Total body weight minus body fat
III. Indications
- Medication dose calculations
- Total Sodium Deficit (Hyponatremia)
IV. Calculation: Male
- Lean Body Mass (Boer formula, 1984)
- Lean Body Mass (kg) = (0.407 * wtKg) + (0.267 * htCm) - 19.2
- Lean Body Mass (Hume formula, 1966)
- Lean Body Mass (kg) = (0.32810 * wtKg) + (0.33929 * htCm) - 29.5336
- Lean Body Mass (James formula, least accurate but commonly used)
- Lean Body Mass (kg) = (1.1 * wtKg) - 128 * (wtKg/htCm)^2
V. Calculation: Female
- Lean Body Mass (Boer formula)
- Lean Body Mass (kg) = (0.252 * wtKg) + (0.473 * htCm) - 48.3
- Lean Body Mass (Hume formula, 1966)
- Lean Body Mass (kg) = (0.29569 * wtKg) + (0.41813 * htCm) - 43.2933
- Lean Body Mass (James formula, least accurate but commonly used)
- Lean Body Mass (kg) = (1.07 * wtKg) - 148 * (wtKg/htCm)^2
VI. Resources
- Fpnotebook Lean Body Mass Calculation
- Calculator.Net Lean Body Mass
- Halls-MD Lean Body Mass
- Richard Muirhead: Exploration of James Lean Body Mass - Time to Consider Others