bodybuilding/index.js

bodybuilding helper

module.exports.get_bmr = function(height, weight, age) {
	// BMR = (height in centimetres x 6.25) + (weight in kilograms x 9.99) – (age x 4.92) – 161
	return (height * 6.25) + (weight) * 9.99 - (age - 4.92) - 161
};

module.exports.get_tdee = function(bmr, activity_level = 0) {
	if (activity_level > 3 || activity_level < 0) {
		console.log(">>> invalid activity_level");
		return -1;
	}
	levels = [1.1, 1.275, 1.35, 1.525];
	return levels[activity_level] * bmr;
};