lbm: Calculating the Lean Body Mass

In oro.pet: Rigorous - Positron Emission Tomography

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.

Author(s)

Brandon Whitcher [e-mail]

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"))

Example output

oro.pet: Rigorous - Positron Emission Tomography (version = 0.2.3)

        h   w                  
 [1,] 200  80 67.52000 61.92000
 [2,] 195  84 68.64805 62.41680
 [3,] 190  88 69.34205 62.41175
 [4,] 185  92 69.54501 61.83892
 [5,] 180  96 69.19111 60.62222
 [6,] 175 100 68.20408 58.67347
 [7,] 170 104 66.49522 55.89010
 [8,] 165 108 63.96099 52.15240
 [9,] 160 112 60.48000 47.32000
[10,] 155 116 55.90934 41.22768
[11,] 150 120 50.08000 33.68000

oro.pet documentation built on May 2, 2019, 6:53 p.m.