The riders, as any person who is exercising to lose weight, they tend to do some planning, which is increasing in intensity in the time. This happens because the body gets used -or condition- improving gradually and a new goal is always a way to motivate yourself. However, new research revealed that this could not have real effects, since it suggested that there is a limit to the amount of calories you can burn through exercise.
A team led by Herman Pontzer, associate professor of anthropology at Hunter College professor, conducted a study of a group of 332 adults, between sedentary and active living in the United States, Jamaica and Africa. The researchers measured the activity levels for seven days using an accelerometer and other portable devices, as well as the number of calories that participants burned during the week.
The first conclusion we came to, as expected, those who eliminated moved over a greater amount of calories. But then they discovered that the “active” reached a point where it entered a plateau and, from there, no “burning” calories than their sedentary peers.
The scientists analyzed what were the specific activities that the participants made, but were able to determine through the accelerometer that elimination level was decreasing calories.
The study adds to other marking a new trend in the way of how it is perceived the exercise world: apparently, burn lots of calories is a weight loss strategy less realistic than previously thought
“. We can not eliminate calories to our liking. Our bodies work hard to keep, “said Pontzer.
For Pontzer the study, published in the journal Current Biology, suggests a paradigm shift in that exercise it is not the main tool for weight loss. According to him, this happens as an evolutionary response: “We think this is a very common evolutionary adaptation , that animals use to avoid running out of resources and not starve the body is aware of your surroundings. and establishes a level of energy expenditure to maintain “.
This is the second study that supports this theory Pontzer. In 2010, researcher City University of New York and his team lived alongside the Hadza, one of the last hunter-gatherer peoples of Africa.
In Tanzania, they investigated energy expenditure of the tribe, who walk for kilometers every day. So Pontzer asked a group of 30 men and women who drank a small amount of water with heavy isotopes of hydrogen and oxygen. Thus, he was able to calculate energy expenditure through urine samples.
Since then the results, which were published in the journal PLoS ONE in 2012 showed no difference in burning calories between the assets and liabilities of the group: their bodies had adapted to his style life and had found an energy balance.
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