oro.pet (version 0.2.3)

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

# NOT RUN {
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"))
# }