Probably because it's a more conservative culture. American fbbs in the 80s 90s and even in the 2000s rarely had implants too. but the technology already existed and was popular among porn stars. some Russian fbbs do have implants.
Vladislava is a bodybuilder. Originally from Temryuk - a small town in Russia - Vladislava lives in Prague now and is getting ready for her first competition in the category "physique" - the category where women are judged by symmetry, shape, proportion, muscle tone, poise and beauty flow.
Have you noticed most russian women in fitness (figure, bikini, physique) have no implants ! Refreshing !