According to the events that athletes take part in, such as sprint, the training is mainly explosive power and heart and lung. Undoubtedly, the muscles trained by professional athletes and those trained by fitness enthusiasts are two completely different types, which cannot be generalized, let alone simply compared horizontally. Muscle differences between athletes and fitness enthusiasts are determined by many different factors.
There will be some differences in body shape according to different sports. Give a few different examples: sprinters and long-distance runners; Short-distance cyclists and long-distance cyclists; Bodybuilders and bodybuilders. In these exercises, we will find that the shapes of muscles are different. Long-distance running is running, sprint running is riding a bike, and bodybuilding needs a lot of resistance training. However, due to the different competition requirements of the project, the overall shape of the athletes will be different. Being an athlete doesn't mean building big muscles, and building big muscles doesn't mean being qualified to be an athlete. For example, in weightlifting, in addition to basic hard core training, there is also the development of strength skills, which is the most important. Muscles can be strong, but you can't do well without knowing the knowledge of a certain sport.
"there is specialization in the industry." The purpose of athlete training is to become higher, faster, stronger and more United in some sports. Their training direction naturally tends to jump out of a higher height, run faster, exert stronger strength and better teamwork. In order to achieve these goals, all athletes are not required to have full muscles or the most perfect muscle lines. On the other hand, even if you have perfect muscles, you may not be able to run fastest, jump highest and give people the strongest strength. Perfect muscles are not necessary for athletes to win, and winning is not a sufficient condition for athletes to have perfect muscles. Therefore, athletes' muscles are not necessarily the most perfect, and athletes' muscles are not necessarily more obvious than ordinary people.