Life & Style (July 9, 2012) has a theory, which is that Madonna is desperately seeking her youth. Wow, when she signed up to do that (admittedly amazing) movie going on 30 years ago, I bet she never dreamed "desperately seeking" would be applied to her every move going forward.
I don't think Madonna's desperate for anything. But looking at her appearance, I'm reminded that I think she is aging more like Gloria Swanson than any other celebrated star she's often compared to. Though Swanson, a health nut, would have been desperate to have had Madonna's gymnastic dexterity at age 53.