I've resumed strength training after years of just doing cardio, and have been working out for about 2 years now. I do free weights and body weight exercises. I am currently 1.83m (6 ft) and 92 kg (203 lbs)
I have a good muscular physique, but despite my efforts, I always have a protruding stomach.
I have a thin layer of fat on my stomach, an inch approx., and it's definitely not the reason for it. It seems as though there's a lot in my stomach and it just sticks out.
I also have very strong core, Id do: 1. Dragonflags - Abs 2. Weighted back hyperextensions - Back 3. Human flag on bench (can't do the regular due to shoulder injury) - Obliques 4. Pendulum - Obliques
Before my shoulder injury I also did Front and Back Lever for more than a year, so I believe my core is well built.
I heard that you should strengthen a muscle called Transversus Abdominis, but the only exercise I found for it was stomach vacuum.
What could be the reason for this? Could I have excess fat under my muscles? It seems very unlikely at such relatively low body fat percentage.
And could you recommend effective exercises for the mentioned Transversus Abdominis (besides vaccum)?