Understanding the Broca formula for estimating ideal body weight.
The Broca Index is a simple formula developed by French physician Paul Broca in the 19th century to estimate ideal body weight based on height.
Ideal Weight (kg) = Height (cm) - 100 (for men)
Ideal Weight (kg) = Height (cm) - 105 (for women)
For individuals over 40 years old, subtract an additional 5-10% from the result.
For a 175 cm tall man: 175 - 100 = 75 kg
For a 165 cm tall woman: 165 - 105 = 60 kg
The Broca Index is a very basic formula and doesn't account for factors like body composition, muscle mass, or ethnic differences. It's best used as a rough estimate rather than a precise target.
Modern methods like BMI ranges or body fat percentage are generally more accurate for assessing healthy weight.