oro.pet (version 0.2.1)

LeanBodyMass: Calculating the Lean Body Mass

Description

The lean body mass (LBM) is calculated according to the formula $$1.1\cdot\mbox{weight}-128\cdot(\mbox{weight}/\mbox{height})^2$$ if male and $$1.07\cdot\mbox{weight}-148\cdot(\mbox{weight}/\mbox{height})^2$$ if female.

Usage

leanBodyMass(height, weight, gender)

Arguments

height

is a vector of heights in centimeters.

weight

is a vector of weights in kilograms.

gender

is a character vector (may be of length one) with the value male or female.

Value

• Vector of lean body mass values in kilograms.

References

Sugawara, Y., K. R. Zasadny, A. W. Neuhoff, R. L. Wahl (1999) Reevaluation of the Standardized Uptake Value for FDG: Variations with Body Weight and Methods for Correction, Radiology 213: 521--525.

See Also

standardUptakeValue

Examples

n <- 11
h <- seq(200, 150, length=n)
w <- seq(80, 120, length=n)
cbind(h, w, leanBodyMass(h, w, "male"), leanBodyMass(h, w, "female"))