First, there are only a few tips and tricks that can be used to do pull-ups, but in actual combat, there are still not many people who actually use them. First, master the correct pull-up posture. I won't introduce the specific posture here. Second, both hands must hold the horizontal bar tightly. This is to examine the grip strength of the palm we mentioned earlier. Increasing the grip strength can make our body weight more and more easy to pull up. Thirdly, shoulder sinking, as a kind of reverse shrug, can prevent us from pulling up our weight with the strength of trapezius muscle, so that we can learn to use the strength of latissimus dorsi and other muscles in various parts of the body.
Second, why can't strong people do pull-ups? Our strength can be divided into upper limb strength, lower limb strength, core strength and comprehensive strength. The strength of each part is determined by the muscle strength of different parts. Your strength may be manifested as the core strength or the strong grip strength of your arms, but the strength of the muscles needed for the real pull-ups may be weak, resulting in insufficient muscle strength to support the pull-ups That is to say, to put it simply, the contractility and support of one or more muscles responsible for pull-ups are not enough to bear your whole weight, while the three muscles mainly used for pull-ups are rarely used in daily life and are also the muscles that many bodybuilders don't pay much attention to, so people with strong strength only have good upper arm strength, and the muscles used for pull-ups are weak, so people who don't train regularly can't do any pull-ups.
Whether it's fitness or training, you can't rush for success. You need to practice slowly step by step. You can start by practicing the grip strength of our palms, try hanging vertically on the horizontal bar for a while, and then you can continue training slowly.