Years of rehab “changed the entire way that I approached working out,” she says. Here’s what to know about Brooke Shields’ workout routine.

She does Pilates and other group fitness classes.

Before her foot injuries, Brooke used to work out with a trainer. But she’s since discovered that she doesn’t “love individual attention,” instead preferring to be “one of a group.”

“I don’t try to cheat during classes, but I don’t feel like being scrutinized,” she says. “I know they say they’re helping, but I’m just like, ‘I don’t want that kind of attention!'”

But Brooke is particular about what classes she attends, adding that she can’t do “80 percent” of the intense ones that her little sister does. “My knees won’t work,” she says. “I’ve done a lot of damage to my body. So now, I really put myself in a position to look forward to how I’m going to feel—not just after, but during.”

Brooke attends low-impact fitness classes four to five times per week, mixing in Pilates with “anything that deals with strength and stretching.”

“I can probably make myself arrive somewhere for 50 minutes, and I’ll always feel good during it,” she says.

Ultimately, she wants to incorporate strength training into her routine, too. She’s hopeful that it will help build up bone density, which she’s become “acutely aware of” as she gets older. (According to experts, resistance training can make for “stronger, denser bones,” plus weight-bearing exercises like running and walking.)