How come all these professional athletes in competitive sports are all doing warm up, stretch and core exercises but you never see a guy in the gym doing it apart from some black dude

>>76506952
>>76506819
>>76506700
Like always, /fit/ full of retards that just think lift heavy weight is good.
Nah, literally every competitive sport on this planet has you working your core out regularly. I guess literally billions of dollars of research is wrong and anon on some vietnamese basketweaving forum is in the right.