[NewsQuest = Science Reporter Kim Hyung-geun]The fact that exercise is good for health is not new information worth emphasizing. However, opinions differ on when, how, and how much to do.
However, if your goal is just to lose weight and lose weight through exercise, a study has found that the late morning, around 10 am, is the best time.
This is the reason why fat burning metabolic activity is greatest at this time. Exercising in the morning can increase the amount of body fat burned and increase the weight loss effect compared to exercising in the evening.
Morning exercise has stronger lipolysis and metabolic activity than following work
This claim comes from a study conducted on mice by researchers from the Karolinska Institutet in Sweden and the University of Copenhagen in Denmark to compare the effects of exercising in the morning versus exercising in the evening.
In the experiment, the rats exercised at the start of the activity Gene expression related to adipose tissue degradation, thermogenesis, and adipose tissue mitochondria was increased. However, there was no such change in rats that were exercised during breaks following a day’s work.
The joint research team found that exercising in the morning can have a more active effect on fat metabolism, as the body is trying to balance glucose and energy levels.
The research team found that mice that exercised in the early activity phase, which corresponds to human morning exercise, had a higher metabolism than mice that exercised in the late followingnoon or evening, when they are usually resting.
It is influenced by circadian rhythms, or circadian rhythms, which are natural 24-hour cycles occurring in the animal’s body that respond primarily to light and dark inputs in vivo.
These changes are regulated by molecular clocks that turn specific genes on or off in cells.
For example, a variety of factors, including hormones, temperature, food intake, and exercise, can act on tissue-specific molecular clocks in ways related to the time of day to alter the expression of genes that affect metabolism.
These systems predict an organism’s biology and behavior and help it adapt to activities occurring at different phases of the day.
Metabolism is determined by biorhythm… Mornings are much more lively than evenings
To see if the timing of exercise affects fat metabolism, the research team analyzed adipose tissue from mice subjected to high-intensity exercise performed at different points in two different cycles: when the mice were active and in the early stages of rest. studied
These times correspond to late morning and late evening exercise times for humans, respectively.
The research team investigated various markers of fat metabolism and analyzed which genes were active in adipose tissue following exercise.
A study published in a recent issue of the journal ‘PNAS’ showed that certain fatty acids that break down stored fat are present in higher concentrations in the blood of mice during exercise. This was not the case following exercise, the rest phase.
This means that fat is metabolized more actively as an energy source in the early stages of exercise, and the metabolic response to exercise varies depending on the time of day when exercise occurs.
The research team confirmed that early physical activity increased the expression of genes involved in the breakdown of adipose tissue, thermogenesis (heat production), and proliferation of adipose tissue mitochondria (where energy is generated for exercise).
All of these indicate a higher metabolic rate. These effects were observed only in rats exercising during the early active phase, regardless of food intake.
“Our results suggest that late-morning exercise may be more effective than late-evening exercise in terms of boosting metabolism and burning fat,” said Dr. Juleen Zierath, a molecular medicine expert at the Karolinska Institute who led the study. summarized.
“If this is true, this study might be a valuable suggestion for people who are overweight to lose weight,” explains Dr. Zieras.
Experimental results obtained in mice do not always directly apply to humans. However, the two species, humans and mice, share many basic physiological functions.
The rat is a well-established model for human physiology and metabolism. However, there are also important differences, such as the fact that rats are nocturnal.
“Proper timing for weight loss appears to be important for improving the body’s energy balance and the health benefits of exercise. However, more research is needed to draw reliable conclusions regarding the relevance of our findings to humans. ”Professor Zieras concluded.
