I want to exercise my abdominal muscles. I practiced sit-ups when I was a soldier. At that time, I couldn't eat anything. I trained for a few sessions and came back from the army because I often.
If you are a veteran, as long as you are not a soldier of a different brand ... and receive normal intensity training, your muscles should be quite good, regardless of explosive force or density. You are hiding your abdominal muscles, because the fat on your stomach is too thick ... What you need to do is to lose weight, not to continue to practice muscles, but to insist on aerobic exercise.