just wondering

I was just wondering how much long-term physical damage today's gymnasts might be doing to their bodies with the type of tumbling that is done today. I was reading about Mary Lou Retton recently, and she has had hip replacement surgery. There was a congenital issue here, also, and combined with her powerful tumbling 30+ years ago (not comparable to what it is now, but still pretty good), apparently caused the damage. I remember someone saying after the LA Olympics that, in order to do the powerful new tumbling (for that time) and to be successful in gymnastics, all future female gymnasts would have to be built like MLR. But after her came Svetlana Boginskaya and then Svetlana Khorkina, two successful gymnasts who could not be more physically different. I wince sometimes when I see today's female gymnasts land from their tumbling runs. Simone Biles, for example, looks like she is falling out of the sky--how does she have enough time to do all that up there before she lands? All that pounding and all those hard landings must be taking a toll (and this is to say nothing of the men). Any thoughts?

just wondering