If you practice abdominal muscles in the gym, you should have a multifunctional chair to do sit-ups, and do more abdominal rolling and abdominal muscle tearing. You don't need any equipment to exercise your abdominal muscles.

Then talk about chest muscles. There are many equipment to exercise chest muscles in the gym, such as Transformers (big bird), butterfly machine chest clamp, T-bar high pull-down, sitting equipment rowing, rope chest clamp, and then there are classic barbell bench press and dumbbell bench press. Novices suggest barbell bench press for 4 groups × 12- 15 times, and butterfly press for 3 groups ×. When the physical fitness is better, more groups and heavier weights can be added on this basis. There is no need to adjust the number of times in each group. Usually 10 action is enough, and the more groups, the better the effect.

However, personally, it is not recommended to practice abdominal muscles. Exercise abdominal muscles, to pursue lean body fat, not a little extra fat, which is slightly in conflict with exercising other parts to gain muscle and weight, or consider exercising abdominal muscles after you exercise other hungry people.