We often receive advice trying to repel every limit, because human potential is boundless. But new research in the US proves the opposite.
New research published in the Science Advances magazine from Duke University (USA) has shown for the first time that no matter how hard you try, people will succumb to a limit: 2.5 times the speed. metabolism when resting of the body . Trying to cross this landmark, humans can make their bodies fail.
"Hard limits" for people to be active, actively consume energy and help the body stay healthy are exercises that require 2.5 times the resting metabolic rate of the body or less - (photo: SHUTTERSTOCK)
To determine this limit, researchers have analyzed data from a number of events that require people to maximize their strength and endurance in the most extreme conditions on the planet, typically those The Race Across the USA participant (the cross-country marathon).
Their urine samples were collected in the first and last stages of the five-month race. The results are compared with previous data from the most intense athletic activities such as swimmers, mountain climbers in the Arctic, cycling Tour de France and data of campaigns. Race Across the USA members years earlier.
These people can indeed temporarily cross the limit of 2.5 times the metabolic rate when resting above, but things are not sustainable. For example, during the 23-day Tour de France, participants could burn 4.9 times more than their resting metabolic rate, while marathoners sometimes burned 15.6 times their metabolic rate. jar. But if you try to maintain this, your body starts to erode its own resources, the first manifestation of which is weight loss, then there are more serious problems including complete exhaustion.
Therefore, 2.5 times milestone is the number you have to pay attention when trying to maintain the habit of exercising sports, active physical activities daily. Keeping yourself not too "end point" really helps your body to be healthier. For an average person, this end point is equivalent to about 4,000 calories / day.
Associate Professor Herman Pontzer, an expert in evolutionary anthropology at Duke University, a member of the research team, analyzed that the " hard limit" 2.5 times the metabolic rate in humans may have a cause. Deep down from your digestive system, for example, calories and intestines can be absorbed in 1 day.