1, exercise consumes energy to promote the oxidative decomposition of fat stored in the body, thus reducing fat. But at the same time, frequent muscle contraction and exertion during exercise will stimulate muscle fibers to thicken and increase muscle mass.
In the body, the water content of muscle tissue is much higher than that of fat tissue, so muscle is "heavier" than fat (strictly speaking, on the premise of the same volume).
In other words, as long as the muscle "less" increases, it will offset the weight loss caused by the "more" reduction of fat. Eventually, the weight loss before exercise is not obvious.
2. Fat consumption is directly related to the amount of exercise. No matter what kind of exercise or form, as long as the amount of exercise is large enough (enough energy consumption), it can promote the oxidative decomposition of fat in the body.
However, the increase of muscle is directly related to the form of exercise. Generally speaking, the more strenuous exercise (such as weightlifting, dumbbells, equipment, etc. ) is necessary, the greater the stimulating effect on muscle growth, because the formation of muscle follows the principle of "use is life, use is retreat".
In addition, the increase of muscle is most obvious in the early stage of exercise, especially for those who have never exercised before and just started exercising. If you continue to exercise, that is, exercise for a long time, your muscles will not keep increasing.
Therefore, the best way to solve the problem of not losing weight in the early stage of exercise is to build up confidence and continue to exercise until the weight gained by muscle can't offset the weight lost by fat, and the weight will naturally drop. At the same time, we should pay attention to choosing the right exercise form to avoid excessive stimulation of muscle growth.
Of course, it must be explained that, in any case, the increase of muscle is beneficial to health. That is to say, I have lost fat and gained muscle. Although I haven't lost weight, I still have great health benefits, at least not lower than ordinary weight loss.
Regardless of health, lose fat and gain muscle. Although the weight has not decreased, the "volume" of the body has decreased, so people will appear "thinner" and more energetic.
Extended data
What is true thinness:
Weight is a very superficial criterion for judging obesity. Is it really thin? You can look at the body mass index. Body mass index (BMI) is a commonly used international standard to measure obesity and health.
As far as China is concerned, the body mass index is normal when it is in the range of 18.5 ~ 23.9, thin when it is lower than 18.5, and overweight when it is equal to or higher than 24 hours. By calculation, we can judge whether we are overweight or obese compared with the body mass index standard in China. Body mass index is calculated as follows:
Body mass index (BMI) = weight (kg) ÷ square of height (m)
For example, a woman with a weight of 1.6m weighs 60kg, so her body mass index is 60 ÷ (1.6x1.6) ≈ 23.44.
Besides body mass index, you can also look at body fat rate. Body fat rate refers to the proportion of body fat weight to the overall weight of the human body, reflecting the amount of body fat content, which is the key to slimming!
Body fat%? = 1.2× body mass index? +0.23× age -5.4- 10.8× sex (the value of male sex is 1 and that of female sex is 0).
Generally speaking, it is normal for men to have a body fat rate of around 10% ~ 20%, and it is standard for women to have a body fat rate of around 17% ~ 30%. However, this standard is not fixed and will change with age. For women over 50 years old and men over 55 years old, the standard value of body fat percentage can increase by 2%-3% every 5 years old.
References:
Baidu Encyclopedia-Body Mass Index Index