First of all, roughly speaking: 1 It is necessary to train both large muscle groups and small muscle groups. You should not only exercise muscles (that is, strength), but also put the same enthusiasm into flexibility exercises. Specifically: as you said, it seems that one piece looks big, and the other piece doesn't just exercise large muscle groups. Many beginners with fitness hobbies only pay attention to major muscle groups such as pectoralis major, biceps brachii, rectus abdominis and latissimus dorsi. Taking pectoralis major as an example, exercises can be divided into upper chest edge, middle chest edge, lower chest edge and the steps between the two chests, that is, pay attention to the sculpture of muscle fine lines. For example, biceps brachii and triceps brachii are two opposite muscles, biceps brachii contracts and triceps brachii relaxes. Therefore, after practicing biceps brachii, don't neglect the triceps brachii exercises, including deltoid and trapezius muscles, which are easily overlooked. Because many gym fitness instructors often use static exercises, that is, by slowly contracting muscles to stimulate muscle growth, it is easy to shape muscles, but it is not what you want. If you want to make your muscles full and elastic, and do more muscle stretching exercises after practicing strength, you can try yoga, practice stretching that part, and do more exercises that can be used to practice muscles, so that muscles can grow during exercise. Finally, warn the questioner that illness was not built in a day, so we must persevere. In order to achieve the Dragon Ball and the Monkey King, you should not only work hard, but also have the right methods and talents, otherwise it may be an impossible task.