Because muscle is metabolically active – more muscle means more Calories being burned. The amount of muscle also has an impact on Calories burned. As the body adapts to each exercise, it becomes more efficient in its use of Calories – therefore burning less! In addition to this, the source for energy may come from either fat or muscle glycogen. Considering 1 pound of fat is the equivalent of 3,500 Calories – you can see that it takes a lot of exercise to burn fat. The calculation uses the coefficients below if you want to burn more or fewer calories, you can change them. What Does This Mean For Fat Loss?Įxercise requires energy, and this energy is measured using Calories (or more accurately, kilocalories). However, accuracy is not assured with these – but the technology continues to improve. NOTE that as our bodies adapt to exercise and our body composition changes – so will the amount of Calories burned.Īs time goes on, body sensors and devices are proliferating (such as smartphone accelerometers, fitness bands, et al). Calorie expenditure will vary depending on the ratio of body fat to muscle or lean mass.
The main issue is body composition (see the body fat calculator for more). It is far from an exact science as these amounts are derived from a large sample of people (and are therefore an average). These METs are then applied against your base metabolic rate at rest. This calculator uses the latest figures from the Compendium of Physical Activities – a publication from the Arizona State University.Įach activity has a MET ( metabolic equivalent of task) that attempts to measure the energy cost of activities.
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