Hilary Duff's Workout Routine Revealed

Hilary Duff and Mike Comrie leave Lala’s Argentine Grill after having lunch on Monday (September 19) in Studio City, Calif.

The 23-year-old entertainer’s personal trainer, Harley Pasternak, recently shared how he’s customized her workout routine around her pregnancy.

“No impact, no hyper bouncing and plyometrics,” he told People. “You also want to back off stretching quite a bit. Women become hyper flexible when they’re pregnant.”

Her “low impact exercises” now include the elliptical, incline heel walking and stars, while avoiding routines that focus on her abdomen.

“Hilary‘s fit, young, [and] she’s healthy. And the dad [Mike] is a professional athlete. So I think it’s going to be a great, beautiful, fit baby,” he added.