Pros and cons of running fast
Many people used to run up in the morning workout before meals or fasting movement, and some even think that most of the weight loss effect, they said: the first 20 minutes of exercise under normal circumstances, the main carbohydrate energy is consumed, over 20 After a minute, fat is used passively as a second energy source. When you wake up in the morning, because the carbohydrate has been consumed as energy during sleep, if you exercise at this time, the body's fat can be burned as the first energy, which means you can shorten the time before burning fat, let you Lose more fat during the same running time. 1 , foreign studies have confirmed that fasting exercise can promote fat consumption In fact, studies abroad have shown that fasting exercise is effective in promoting fat consumption, but the mechanism is not shortened as the fat mobilization time mentioned above. A 2005 study by L. H Enevoldsen of the Department of Clinical Physiology at the Bispebjerg Hospital in Copenhagen, Denmark, showed that exercise under starvation can enhance lipid metabolism during and after exercise, as well as the rate of adipose tissue decomposition during exercise. An increase in the concentration of catecholamines is a more important determinant than a decrease in insulin concentration. University of Leuven, Belgium Wim Derave et al.2007 years recruited seven have metabolic syndrome, 45-year-old male, respectively, they do not exercise in the morning, fasting and postprandial strenuous exercise under strenuous exercise three states glucose and insulin responses were survey. The results showed that the rate of fat oxidation in fasting exercise was higher than that in postprandial exercise, but the mechanism is still unclear. In the literature currently found, the author did not find a conclusion to support the shortening of fat mobilization time due to low carbohydrates. 2 , the impact of fasting exercise on physical health On the other hand, if carbohydrate reserves are insufficient, proteins are required to participate in oxidative energy supply and synthetic glucose. In general, the proportion of protein energy in exercise is relatively small. Cathcart 's research in 1925 showed that protein energy accounts for less than 10% of energy expenditure in exercise. Chen Jizhen, Yang Zeyi, Jiao Ying and other studies on athletes' protein metabolism and needs in 1982 found that when the glycogen in the body is depleted, the amino acid supply can rise to 10-15% . As a nutrient, protein is mainly the material basis of the body tissue cells, which can promote growth and development, participate in the body's material metabolism, form antibodies, enhance immunity, and provide energy is not its main physiological function. If too much protein is involved in energy supply, it will have serious consequences, causing slow growth, decreased muscle composition, and even affecting immune system function. Therefore, in daily life and exercise, we should try to avoid protein decomposition. In summary, fasting exercise promotes fat metabolism, but fasting movement may also cause protein breakdown and affect normal physiological functions of the human body. 3 , the correct method of exercise 1. Avoid complete fasting exercise and maintain a certain level of carbohydrates in the body. If you are getting up early or before meals, you may want to add some sugar or energy bars to maintain blood sugar levels during exercise. 2 , should pay attention to the movement process, if there is dizziness, quickly add sugary sports drinks to maintain blood sugar stability and exercise capacity. 3 , If you exercise after a meal, you should choose more than 2 hours after a meal, and then start the exercise after the basic digestion of the food in the gastrointestinal tract is stable. 4 , fat metabolism during exercise is affected by many factors, including: fat mobilization, fatty acid transport in plasma, fatty acid from the blood into the muscle cells, intramuscular triglyceride decomposition rate and decomposition ability, fatty acid activation And its transport through the mitochondrial membrane. Among them, the transport of fatty acids across the mitochondrial membrane requires a carnitine transport system. If you want to lose weight, you may want to add the right amount of L-carnitine before exercise. The latest research shows that ( Sichuan University Yang Min 2012 ) , the supplement of carnitine is safe and effective, and it is necessary to properly cooperate with exercise to better play the role of weight loss. There are also many domestic and foreign studies that have shown that supplementation with L-carnitine before exercise has a positive effect on weight loss. Â Diesel Utv,Diesel Side By Side Utv,Utv Diesel 4X4,Diesel Utility Vehicle Binzhou Daowang Power Co.,Ltd , https://www.dwutv.com
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