Hello my dear virtual friends, do you ever wonder where the limit of human endurance is? Scientists gave the answer to that question as well. They analyzed marathon races ... during which athletes burn large amounts of energy.
When it comes to the average person, that's 4,000 calories a day. For the measure, the scientists used the speed of metabolism at rest.
They came to the following conclusion: the body can withstand a load that is 2.5 times higher than the speed of metabolism at rest, and any load higher than that is not sustainable in the long run.
Another discovery they made is interesting. Namely, the real champions of endurance are pregnant women, and that is because they live on the limit of the load that the human body can cope with.
In particular, women in the second state use energy 2.2 times faster than in the state of rest! The research began with a study of runners who participated in the "Race through America", running almost 5,000 kilometers in 140 days.
It has been noticed that there is a connection between the duration of a sports event and energy consumption - the longer the event lasts, the harder it is to burn calories. When it comes to short exercises, people can cope with energy consumption far above the speed of their metabolism, but in the long run it is not sustainable.
"You can do intense things for a few days, but if you want it to last, you will need to slow down," said Herman Ponzer from the American Duke University, where the research was conducted.
Scientists believe that their conclusion about 2.5 times the maximum enduring rate of energy burning depends on the human digestive system more than on the heart, lungs or muscles. Namely, they noticed that the body cannot absorb enough calories and nutrients to maintain an increased level of energy consumption.
The body can use its own resources, burning fat or muscle mass, which can be compensated later. However, this only applies to shorter-term efforts. With extreme efforts at the limits of human endurance, the body must balance its use of energy, scientists point out.
Although many believe that "everything is in the head", scientists have said that it is also "in the stomach", and that the limits of physical endurance still exist
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I agree with scientists that too much workload is not sustainable in the long run.