Introduction

This module provides various formulas for calculating one rep maximum based on a provided weight and number of repetitions.

Install

Install with npm

$ npm install one-rep-max

Install with yarn

$ yarn add one-rep-max

Usage

To use, choose which formula to apply and provide an object with a weight & repetitions properties. You can read more about the available formulas here.

const oneRepMax = require('one-rep-max')
const args = {
  weight: 100,
  reps: 10
}

console.log(oneRepMax.epley(args)) // 133.33333333333331
console.log(oneRepMax.brzycki(args)) // 133.33333333333331
console.log(oneRepMax.mcGlothin(args)) // 134.0703628078088
console.log(oneRepMax.lombardi(args)) // 125.89254117941672
console.log(oneRepMax.oConner(args)) // 125

CLI

To use as a CLI tool, Install the module globally and run in the format:

$ 1rm --method={all|epley||brzycki|mcGlothin|lombardi|oConner} --weight={quite obvious} --reps={quite obvious}

For example:

$ 1rm --method=all --weight=100 --reps=10
# Outputs
# epley - 133.33333333333331
# brzycki - 133.33333333333331
# mcGlothin - 134.0703628078088
# lombardi - 125.89254117941672
# oConner - 125

Contributing

All Contributions are welcome! Please open up an issue if you would like to help out. :smile:

License

Licensed under the MIT License.

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