Keep strength up to turn back the clock

As her character was on a mission in space, she had to mimic the movements in zero gravity and this demanded she do gruelling wirework in a harness. She had to be super flexible and strong — a tall order for a woman on the cusp of 50.
But her athleticism didn’t start with the film role — she regularly works out and strength training is a big part of her fitness routine. At her age she knows that from now on she will lose muscle, bone mass, and therefore strength at a faster rate than before if she doesn’t challenge herself.