What are the different ways of measurement of metabolism?

Some people who have difficulty losing or gaining weight would benefit from knowing their metabolism. The level of man's metabolism is the measure at which calories burns. The number of calories that a person needs daily is equal to its resting metabolic rate (RMR) plus energy consumed by exercise or everyday activities. Two methods of metabolism measurement are direct and indirect calorimetry.

In the direct method, the person remains in the isolated metabolic chamber for 24 hours. This is the most accurate way to measure metabolism. As a person inside the chamber, it indulges in body heat, increasing a layer of water outside the chamber used to measure temperature. With this temperature, the scientist can calculate the number of calories used by the person.

In indirect calorimetry, the amount of oxygen used by the person is measured. There is a relationship between the amount of oxygen used by the body and the energy it uses, and scientists are able to calculate the calories spent from the amount of oxygen used. With pocket devices of VDThe rest of the resting person in the mouthpiece measures the oxygen ratio to the carbon dioxide. This ratio determines how effectively uses oxygen that corresponds to its RMR.

These handheld computers can be found in gyms and less commonly in medical offices. After a coach or doctor gets RMR results from a hand -held computer, trainer or doctor estimates the daily level of the user's activity and the calorie intake level to come with a custom -made fitness plan. In addition, some handheld computers are compared to RMR people with an average RMR to measure when the metabolism of this person is slower, faster or the same as the average person with the same height, weight and age.

For people without access or need for advanced equipment that can measure metabolism, an easier and cheaper way of measuring metering is to calculate its standardized formula. These formulas measure height, weight and age to come up with RMR. Are forThe average person with standard height, weight and age, so the formulas are less accurate than other methods.

One of these formulas is the Harris-Benedict equation. Men should calculate their RMR with the following formula: 66 + (weight 13.7 x kilograms) + (height 5 x in centimeters) - (6.8 x age in years). Women should use the following formula: 655 + (weight 9.6 x kilograms) + (1.8 x height in centimeters) - (4.7 x age in years). Research has shown that the Harris-Benedect equation is less accurate for people with overweight and people who lose weight than for people who have an average weight and have never been overweight.

Harris-Benedict equation can be used as a weight loss tool. After finding his RMR, one can add it to the calories that spend everyday activities. By detecting calories per day, one can focus on food less calories than this number to lose weight.