1, female congenital hormone "disadvantage"
To put it bluntly, girls have no testicles, and the content of hormones that promote muscle growth in the body is much lower than that of men. Hormone level will affect the state of muscle, among which testosterone, the male hormone, is considered to have obvious effect on muscle growth.
Testosterone can promote protein synthesis and inhibit protein decomposition. Therefore, even individuals who don't like sports, men will be stronger than women. Muscle training will further stimulate the secretion of testosterone, but this stimulating effect is not obvious in women, so it is more difficult for girls to practice muscles than men in terms of congenital conditions.
2, different training methods, girls worry that long muscles are redundant.
Everyone who works out of iron knows that increasing muscle mass requires a lot of continuous stimulation, which makes muscle fibers tear. Through repair, the number and thickness of muscle fibers are increased.
In reality, few girls will use weight to carry out strength training. They do more aerobic exercise, such as running, aerobic exercise and cycling.
The increase of muscle is mainly due to the growth of fast muscle fibers, but in repetitive low-intensity exercise and fixed posture activities (long-distance running, aerobics, cycling, etc.). ), fast muscle fibers are hardly mobilized. This also makes the fast muscle fiber, the main force of muscle enlargement, unable to exercise or even shrink. So, how do most girls make their muscles bigger through such exercise? Don't worry at all!
3. Insufficient nutrition and difficulty in muscle growth.
The synthesis of muscle fiber needs sufficient nutrition, among which protein is the most important. If protein is not enough, muscles will not grow. The reason is simple: lack of nutrition.
To build strong muscles, we need not only long-term high-intensity scientific training, but also strict high-energy and high-protein diet to achieve the best results. Therefore, it is not easy to grow muscles.
What are the benefits of girls practicing muscles?
1, which is helpful to prevent diseases, increase muscle strength around shoulders and prevent scapulohumeral periarthritis: increase back muscle strength and effectively prevent low back pain, cervical spondylosis and lumbar disc herniation; Increasing leg strength can prevent arthritis.
2, help to burn fat, muscle is the organ that consumes the most fat and sugar in the human body. Therefore, increasing muscle exercise can improve muscle quality. The higher the muscle mass, the stronger the ability to metabolize fat, and the human body will not gain weight easily.
3, increase bone density, resistance exercise can increase the bone density of young people, so that middle-aged and elderly people can delay bone loss, which is conducive to bone health and prevent osteoporosis and falls.
4, improve the body's metabolism, muscle is known as the "second heart of the human body." The more developed the muscle, the stronger the muscle contraction. Strong muscle contraction can promote venous blood to return to the heart, improve blood circulation and promote metabolism.
5, enhance blood vessel elasticity through the squeezing effect produced by muscle contraction, prevent and treat early varicose veins, which is conducive to maintaining normal blood pressure levels.