calculate_pi: Calculate Ponderal Index (Corpulence Index)

In MarijnJABoer/befitteR: A bundle of health, fitness, food and body related equations, formula's and more, so you can become fit

Description

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The Ponderal Index (PI) or Corpulence Index (CI) is similar to BMI in that it measures the leanness or corpulence of a person based on their height and weight. The main difference between the PI and BMI is the cubing rather than squaring of the height in the formula. The output is a measure.

Usage

calculate_pi(weight, height)

calculate_ci(weight, height)

Arguments

weight	weight in kg.
height	height in cm.

Details

Note that normally height input should be in meters for the Ponderal Index, but in consistency to the other functions of befitteR height takes the input in centimeters. The calculation is based on the following equation:

PI = \frac{weight}{height^{3}}

For adults, a value of 12 is considered normal.

Value

Ponderal index (dimensionless)

References

F. Rohrer (1921). "Der Index der Körperfülle als Maß des Ernährungszustandes". Münchner Med. Wschr. 68: 580–582.

Examples

calculate_pi(70, 180)

MarijnJABoer/befitteR documentation built on April 24, 2020, 5:43 a.m.