American iron gym, also known as "American traditional gym", originated from American "bodybuilding", that is, the concept of bodybuilding. This kind of gym usually focuses on strength training, focusing on shaping muscle lines and pursuing the balanced development of muscles in all parts of the body.

In Amtrak gym, you can see all kinds of equipment, including dumbbells, barbells, fixed equipment and so on. All of them are to help bodybuilders achieve their fitness goals. Compared with commercial gyms, iron gyms in the United States are more professional and meet the needs of bodybuilders.