Physical activity control body weight by influencing the secretion of intestinal hormones before and

The researchers, who report at the July conference of the Society for the study of eating behavior, held in the USA have suggested that physical activity normalize body weight by influencing the level

hormones secreted by the before and after eating.

Earlier studies have shown that active exercises, like running, increase the body’s sensitivity to leptin, a hormone secreted by cells of adipose

tisue and suppreses appetite.

According to the scientists from Johns Hopkins University in Baltimore during the present study they were able to shed light on previously unknown mechanisms that may make physical activity an effective way to control body weight.

In experiments on rats, researchers monitored levels of intestinal hormones secreted by fasting and after reception of delicious food, as well as before and after training on a running wheel.

Rats running in a wheel, was marked by a higher level Amelina – a hormone that suppreses the appetite.

After eating in the blood of the same rats was observed more severe declines stimulating the appetite hormone ghrelin, which is secreted by the stomach and pancreas. The level of ghrelin usually increases before meals and decreases after meals.

The introduction of the hormone cholecystokinin, decreasing appetite, had a more positive effect on running rats than in rats that did not exercise.

According to Dr. Nu-Chu Liang, one of the authors of the study, the results suggest that exercise helps to control body weight by influencing the level of hormone secretion during meals. It is also posible influence of physical activity on the body’s sensitivity to signals coming from these intestinal hormones. source