In order to increase muscle size, resistance equipment training and self-weight training can be carried out. There is nothing wrong with these trainings, but the key is the design of movements and loads.

Second, some injuries caused by training will affect the height.

Scientific and reasonable means avoiding damage as much as possible. For example, chronic injuries to bones and joints may affect height. The basic idea in this respect is to standardize the movements and avoid or do less extreme training.

Third, the muscle training methods of minors are not exactly the same as those of adults.

It is impossible to cover everything. It is necessary to ask professionals to guide us from the beginning.