Metabolism is the speed of metabolic processes in the body. Initially, it is given to us by nature, directly affects the type of physique and the amount of body fat. In different people, metabolism occurs at different speeds. At the same time, the metabolism is not unchanged – under the influence of a number of factors, the speed of metabolic processes changes. In a simplified form, it can be considered a function of body weight. It is estimated that in an adult male it takes about 0.9 kcal for every kilogram of body weight per hour to maintain internal processes.
The larger the muscle mass, the more you need to consume so that it remains at the same level.
Metabolism can be temporarily accelerated artificially: the use of a large amount of green tea (up to 800 ml per day) can increase the speed of metabolic processes for the next 24-36 hours by 5-10%. Morning jogging for a distance of 6-8 km with local episodic accelerations gives a similar effect over a period of up to 18-24 hours. Do not confuse metabolism with calorie consumption in general: these are fundamentally different things.
Metabolism can be accelerated and for a longer period-months or even years, or completely changed. This requires regular exercise. For example, fatty deposits begin to” burn ” (split to provide the body with energy) when running with only 25-30 minutes of jogging. But in a trained person (after 2-3 months of jogging) the body has already adapted and begins the mechanism of splitting fats somewhere at 15-17 minute. Therefore, an untrained person to lose fat needs to run 40 minutes, and trained – to support the form-only 30!
Metabolism can be fatty, carbohydrate and protein. Regular strength training classes lead to the fact that the body learns to absorb all the nutrients. In this case, carbohydrate metabolism is sharply accelerated by 30-40 minutes after the end of training, and proteins – by 80-120. They talk about carbohydrates and protein “Windows”.
Successive classes in the gym teach the body to spend protein to build muscle tissue, carbohydrates – to replenish glycogen stores.
Metabolism is significantly influenced by body temperature, blood pressure, the frequency of heartbeats – the higher they are, the higher the metabolism. But the most important effect is thyroid function. If you have a too lean physique, or conversely, too tight, the work of the thyroid is probably disrupted.
You can find out only by passing a specialized medical examination. With hypofunction of the thyroid gland (insufficient activity), it is difficult to burn excess subcutaneous fat. With hyperfunction, it is almost impossible to gain weight.
Fitness and health 