Some people lose weight slower than others after workouts, and a research team found a reason. They studied what happens to mice that cannot produce signal molecules that respond specifically to short-term exercise and regulate the body's energy metabolism. These mice consume less oxygen during workouts, burn less fat and are thus also more susceptible to gaining weight.
It is well known that exercise leads to the burning of fat. But for some people, this is much more difficult than for others, casting doubt on whether the mechanism behind losing or gaining weight is as simple as"calories in minus calories out." Researchers have previously identified a signal molecule, a protein by the name of"PGC-1⍺," that seems to link exercise and its effects.
In addition to the production in muscles, the Kobe University team looked at how the production of the different versions of PGC-1⍺ changes in fat tissues, and found no relevant effect in response to exercise. However, since animals also burn fat to maintain body temperature, the researchers also investigated the mice's ability to tolerate cold.
Physical activity at the right time of the day seems able to increase fat metabolism, at least in mice. A new study shows that mice that did exercise in an early active phase, which corresponds to ...