Calorie is a measure of energy not defined in the International system, but used in analyzes of the consumption of living beings. Normally, we can make comparisons of calories with food or energy expenditure of living beings.
But when we need to use this energy for physical calculations, or inanimate objects, we use the term Joule. A joule is when you push a kilo, a distance of one meter, in 1 second.
Typically, we use energy comparison, with the work that energy consumes. How to transport an object or make a move. So, usually when we talk about physical exercises, we compare the average energy expenditure for practicing a type of exercise.
These energy expenditures for living beings are usually defined in calories. Thus, an individual can calculate energy expenditure and food consumption with the Calories system.
For example, a 70 kg individual walking expends 5.5 kilo calories per minute. A standard walk has a speed of 80 meters per minute. Let's imagine a man eating a banana, which on average is 80 grams. We have that 100 grams of Banana has 80 kilo calories.
Therefore, we have an 80 gram banana to have 64 kilo calories. Knowing that walking consumes 5.5 kilo calories per minute, we have that this fruit generates energy for almost 12 minutes of walking. And in this 12-minute walk, the person walked 960 meters. Thus, a banana generates approximately the energy for almost a kilometer of travel.
Thus, calorie measurements are important to observe energy expenditure. Logically, using Joule would be a more standardized system, but because of the groups that manage such systems, Caloria continues to be used. Who knows, maybe one day we will opt for a universal system, without the need for conversions.
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Calorie, Joule, measure, energy expenditure, walking, banana