If the horizontal bar can't be hung for a few minutes, it may be because the muscles of the arms, back and shoulders are not strong enough to support the weight of the body. In addition, hanging the horizontal bar requires certain skills and balance. If you don't master the right skills, it is difficult to hang on for a long time.
If you want to strengthen your muscles and improve your balance, you can try other sports and training methods, such as pull-ups, push-ups and handstands. At the same time, a reasonable diet and adequate sleep are also important, because they help to promote the growth and recovery of the body.