Calculating of Energy Expenditure METS is the abbreviation for the Metabloic Equivalent of a Task. 1 MET is equivalent to 1 kcal of energy (4.184 Kj) expended per kilogram of bodyweight per hour and is the amount of energy commonly assumed to be expended in a resting condition. A complete list of METS values can be found at: prevention.sph.sc.edu/tools/docs/documents_compendium.pdf The amount of energy required to perform a physical activity can be estimated using the equation: Energy expended (Kj) = METS value x bodyweight (kg) x time (hours) x 4.184 For example 4184 Kj (1000 kcal) of energy output for a 100 kg person would require 70.5 minutes of vigorous rowing or 157 minutes of brisk walking. But it might scare you how little food is required to reach this 4184Kj. For example 2 100g mars bars or 2 large fries for McDonalds are equal to 4184Kj. So next time before you dive into a mars bar or McDonalds fries just remember how much time you will have to spend to burn these off.
Posted on: Mon, 02 Sep 2013 08:33:39 +0000
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