# Corpulence index

Ponderal Index
The Corpulence Index (CI) or Ponderal Index (PI) is a measure of leanness (corpulence) of a person calculated as a relationship between mass and height.wikipedia
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### Body mass index

BMIbody mass index (BMI)body-mass index
It was first proposed in 1921 as the "Corpulence measure" by Swiss physician Fritz Rohrer and hence is also known as Rohrer's Index. It is similar to the body mass index, but the mass is normalized with the third power of body height rather than the second power. CI has been shown to have higher sensitivity, specificity, as well as both positive and negative predictive values than body mass index.
In comparison, the Ponderal index is based on the natural scaling of mass with the third power of the height.

### Waist-to-height ratio

waist-to-height ratio WHtR
Waist-to-height ratio
Ponderal index

### Dimensional analysis

dimensionsdimensiondimensionally equivalent
with mass in kilograms and height in meters, giving a measure with the same dimensions as density.

### Density

densedensitiesmass density
with mass in kilograms and height in meters, giving a measure with the same dimensions as density.

### Pediatrics

pediatricianpediatricpaediatrician
Because of this property, it is most commonly used in pediatrics.

### Anthropometric measurement of the developing fetus

crown-heel length
(For a baby, one can take crown-heel length for the height.

### International System of Units

SISI unitsSI unit
The corpulence index is variously defined (the first definition should be preferred due to the use of SI-units kg and m) as follows:

### Intrauterine growth restriction

intrauterine growth retardationGrowth restrictionfetal growth restriction
It plays a role in assessing whether the intrauterine growth restriction of a child is symmetrical or asymmetrical.

### Positive and negative predictive values

positive predictive valuenegative predictive valuepositive
CI has been shown to have higher sensitivity, specificity, as well as both positive and negative predictive values than body mass index.

### PI

Ponderal index, a measure of leanness of a person (similar to body mass index)

### Placental insufficiency

uteroplacental insufficiency

### Somatotype and constitutional psychology

somatotypesomatotypesectomorph
Ectomorphy : Calculate the subjects Ponderal Index:

### Classification of obesity

Body Volume Indexbody mass indexBVI
Corpulence index