Pippa Middleton's Waist-Whittling Workout Routine

USMagazine, Friday, January 6, 2012, 8:37am (PST)

Catch her if you can! Duchess Kate's younger sis never slows down!

Two weeks after finishing a June triathlon in Woodstock, England, Pippa Middleton competed in Scotland's Highland Cross race, a 20-mile run and 30-mile bike ride.

PHOTOS: Pippa Middleton's fabulous figure

"She does it all: tennis, swimming and running," an insider tells Us Weekly.

But the 5-foot-9 single stunner's true love? Hourlong Pilates sessions with Margot Campbell at London's Pilates on the Go.

"I always leave feeling calm," Pippa, 28, has said of the mat- and Reformer-based workouts. "I have noticed a huge difference in my core strength."

PHOTOS: How Pippa became a star

And, of course, the sessions help form her famous body part. Reveals a pal, "The kneeling one-legged pull on the Reformer gives her bottom that pert and round shape. She takes her workouts seriously."

PHOTOS: Pippa's super-chic fall style

While it's clear that Middleton, who is the author of a forthcoming party-planning book, loves her daily caffeine fix (specifically at London's Le Pain Quotidien) to get her metabolism revving , she also "loves fish and Mediterranean food," says a source.

Get more Us! Follow us on Twitter, Friend us on Facebook, Subscribe to Us Weekly

Show Comments
When using Facebook Connect your image and name may display on Wonderwall. All Privacy Settings are controlled by Facebook
Like us on Facebook?
affordable face
Thanks for subscribing!