LTthreshold: An estimation of the upper threshold

In DrIanPhilips/walkcyclecalcs: Walking and cycling calculations

Description

This function allows you to estimate the exercise thereshold which is lactate threshold / or threshold at 1 hour for fitter people It returns threshold as the percentage of Vo2max

Usage

LTthreshold(data = NULL, personID = "personID", weight = "weight",
  BMI = "BMI", vo2max = "vo2max_unif", PASS = "PASS",
  return_a_vector = TRUE)

Arguments

data	dataframe optional, default is NULL
personID	default = "personID" vector or character string of column name in data
weight	default = "weight", weight of bike and rider in kg
BMI	default = "BMI", Body Mass Index kg/m2
vo2max	default = "vo2unif", an estimate of VO2max (mL/kg/min)
PASS	default = "PASS", NASA - Physical Activity Survey
return_a_vector	default = TRUE

Details

The rationale for this is described in Philips I, Watling D, Timms P (2018) Estimating Individual Physical Capability (IPC) to make journeys by bicycle International Journal of Sustainable Transportation http://dx.doi.org/10.1080/15568318.2017.1368748

Value

Threshold percentage of Vo2max

Examples

## Not run: 
LTthreshold(personID = 1,
weight = 70,
BMI = 23,
vo2max = 55,
PASS = 9,
return_a_vector = TRUE)

personID <- c(1,2,3)
weight <- c(60,70,80)
age <- c(30,40,50)
sex <- c(0,1,0)
BMI <- c(25,27,30)
PASS <- c(7,5,1)
vo2max_unif <- c(50,40,30)
df <- data.frame(personID,weight,age,sex,BMI,PASS,vo2max_unif)
LTthreshold(data=df)

## End(Not run)

DrIanPhilips/walkcyclecalcs documentation built on June 28, 2019, 9:06 p.m.