/kloc-started exercising at the age of 0/6, now 29. Push-ups were the main exercise since I was a child, and dumbbell exercise was not much, but dumbbell and barbell started after my height was fixed. Male 13 years old. Dumbbell exercise is not recommended, because many dumbbell exercises press the bones and affect the height. The key is to see which muscle LZ wants to exercise. If you exercise your arms, it is recommended to use pull-ups, which can not only exercise your muscles, but also help your bones grow, which has a positive effect on your height. What's the hurry to practice big shots? When the height is high, you can practice You know, height can't be long. LZ is now the age of the body, remember!