1, you must first enlarge the muscle groups (chest, back and legs). Then the shoulders, hands, and core) Because the large muscles in the chest and back need the assistance of the shoulders and hands to complete the action, you must keep the shoulders and hands in a strong state to help them be stable and powerful.

2. If the hands and shoulders are weak first and the movements are unstable when pushing the chest or pulling the back, naturally there is no strength to practice! Secondly, do the shoulder, because the training action of the shoulder also needs the help of the hand, so the hand should stay behind and practice the same thing.