Calculate lean body weight — calc

Get an estimate of lean body weight (LBW, in kg) based on weight, height, and sex.

Usage

calc_lbw(
  weight = NULL,
  bmi = NULL,
  sex = NULL,
  height = NULL,
  method = "green",
  digits = 1
)

Arguments

weight: total body weight in kg
bmi: bmi
sex: sex, either `male` of `female`
height: height in cm
method: estimation method, either `green` (default), `boer`, `james`, `hume`
digits: round to number of digits

Value

Returns a list of the following elements:

value: Lean Body Weight (LBW) in units of kg
unit: Unit describing LBW, (kg)

Details

Note: technically not the same as fat-free mass, although difference is small.

References: `green`: Green and Duffull. Clin Pharmacol Ther 2002; `james`: Absalom AR et al. Br J Anaesth 2009; 103:26-37. James W. Research on obesity. London: Her Majesty's Stationary Office, 1976. `hume` : Hume R et al. J Clin Pathol. 1966 Jul; 19(4):389-91. `boer` : Boer P et al. Am J Physiol 1984; 247: F632-5

Examples

calc_lbw(weight = 80, height = 170, sex = "male")
#> $value
#> [1] 59.7
#> 
#> $unit
#> [1] "kg"
#> 
calc_lbw(weight = 80, height = 170, sex = "male", method = "james")
#> $value
#> [1] 59.7
#> 
#> $unit
#> [1] "kg"
#>