Generally speaking, you can practice in the order of chest, back, shoulders, arms, legs and core during fitness. The principle of this sequence is chest and back first, because you need the assistance of shoulders and arms to complete the action. You must keep your shoulders and arms in a strong state to help them be stable and powerful. If the arms and shoulders are weak first, when pushing the chest or pulling the back, the movement is easy to be unstable and weak, and the practice effect is naturally not good! Secondly, do the shoulder, because the training action of the shoulder also needs the assistance of the arm, so it should be left to the back to practice, and the principle is the same. When the upper body is finished, do the lower body. The training intensity of the lower body is relatively high. If you practice the lower body first and then use up all your strength, you don't need to practice the upper body. Finally, the core (waist and abdomen), all movements need the stability of the core, especially the standing movements.