As we all know, the higher the androgen, the easier it is to grow muscles. Different people use the same training plan and the same diet, and some people just grow muscles faster. The hormone level of blacks is generally high, and most of the athletes standing on the Olympic stage are black or mixed-race.

Hard training is difficult to make up for the level of endocrine, but it doesn't need too high testosterone for ordinary bodybuilders. As long as the testosterone content is within the normal healthy range, pay attention to the same training method and cultivate a good-looking and strong muscle shape. If your goal is to increase muscle circumference, then the endocrine level is very important. The main reason why men have more muscles than women is that their endocrine level is higher than that of women.

Weightlifters have a larger proportion of white muscles.

Second, the proportion of muscle fibers.

Skeletal muscle fibers are divided into red muscle and white muscle, and the proportion of red and white muscle fibers is different for each person. Red muscle is an endurance muscle fiber, also called slow muscle, and white muscle is a strength muscle fiber.

Athletes in endurance sports such as long-distance running have a high proportion of red muscle fibers, while weightlifters have a high proportion of white muscle fibers. People with a high proportion of white muscle fibers are more suitable for fitness, but it is impossible to detect whether your body is high in white muscle fibers or red muscle fibers. Even if you know, it doesn't mean much. Black muscle type is more suitable for explosive sports, but have you ever seen black people in swimming competitions? Just find a sport that suits your talent.

Can eat, practice and sleep.

Third, the talent of gastrointestinal digestive function.

There is some truth in the saying "practice three points and eat seven points". Long muscles need a lot of nutrition. People with gastrointestinal absorption problems, people with poor appetite and even their own nutrition. What about fitness?

People who can eat, absorb and sleep must be good at building muscles. Many fat people are of this type. When they are exposed to fitness exercises, their strength and muscle growth rate are amazing, and they quickly complete the counterattack. Those who eat too much but are not fat, those who eat cold and spicy food and cry and complain that their stomachs hurt, will have a more difficult process of muscle gain, and their stomachs are too fragile to develop muscles with large latitudes.

Fitness needs bone talent.

Fourth, the talent of bone proportion.

Some people are born with wider shoulders than others, and some people are born with long legs. Generally speaking, a big skeleton has more advantages than a small skeleton. Take a person with a height of 170 as an example. If you measure your wrist with a tape measure, the skeleton of a person with a wrist circumference below 17 cm will be considered too small.

Excellent bodybuilders have appeared in both big and small skeletons, but phil sith's skeleton is not big. Compared with bodybuilding, fitness needs excellent bone proportion, and the full coordination of broad-shouldered bee waist muscles is the standard of fitness competition.