One-Rep Max calculation functions

orm.js

function Epley(wt, reps) {
  return wt * ( 1 + reps / 30);
}

function Brzycki(wt, reps) {
  return wt * 36 / (37 -reps);
}

function Lander(wt, reps) {
  return 100 * wt / (101.3 - reps * 2.67123);
}

function Lombardi(wt, reps) {
  return wt * Math.pow(reps, 0.1);
}

function Mayhew(wt, reps) {
  return 100 * wt / (52.2 + 41.9 * Math.exp(reps * -0.055));
}

function Oconner(wt, reps) {
  return wt * (1 + 0.025 * reps);
}

function Wathen(wt, reps) {
  return 100 * wt /(48.8 + 53.8 * Math.exp(-0.075*reps));
}

function Blah(wt, reps, zwr) {
  return wt*20000 *zwr;
}

function Five31(wt, reps) {
  return wt + wt * reps * 0.0333;
}

// fnAverage is in fnAverage.js


function ORM(wt, reps) {
  var fn = fnAverage(Epley, Brzycki, Lander, Lombardi, Mayhew, Oconner, Wathen, Five31);
  return fn(wt, reps);
}