with age this happens to many.
can be many things, an injury somewhere else,not allowing you to train or feel arms properly nomore, a nerve "disabled" etcetc.
but the gut is still a mystery to me.
you cant say its visceral fat, a bbuilder or serious trainer of any sports would have easy time to get rid of that.
the growht of internal organs bc hgh also doesnt count in all cases, some dont do gh ever and have that look.
its weird phenomenon.i read they call it metabolic syndrom, but that would be the visceral fat thing again.
maybe its just playing trick on eyes, widened ribcage from previous training with now smaller muscles and more fat everywhere can cause such a cosmetic change in look.
we have this one guy at the gym, huge ribcage, he looked very good back 10 years when he was jacked like hell.
now he holds maybe my muscle mass, thats half of what he had before, and all that left is the ribcage,making it look like a huge gut, but he doesnt have a gut pushing outside.
no sugarcoating it all looks like shit