In fact, pull-ups are a very difficult movement in the field of fitness, and generally only advanced trainers will adopt the training method. The direction of the palm and the width of the hand will determine the difference in your muscle training. The main training muscles are latissimus dorsi and biceps brachii. So if you just want to change your physique, I suggest you start with something simple. Even if you want to do pull-ups, you can find a lower horizontal bar first, so that your feet can land and your body is at a 45-degree angle with the ground. Then pull your body towards the horizontal bar. After a period of training, your muscle strength will increase, and then you can try normal movements. However, I suggest that you can improve your physical fitness through a comprehensive training, because no single project can improve your physical fitness. As for palm pain, it is caused by excessive palm pressure per unit area. Of course, it will be better to have cocoons on your hands, but it is still not recommended. Wear gloves in the early stage, gloves will protect the palm. Avoid getting hurt. Your hand will be injured before the cocoon comes out, which will affect your training.

Finally, it is suggested that you can add some aerobic training, so that you will find that your physical quality will change faster.