New Year, New You in 2014

10 Easy Fit Tips from Stars' Trainers

A back like Halle's! A lean body like Gisele's! Get the low-down from stars' trainers to look – and feel – like a perfect 10 in 2010!

STRENGTH TRAIN TO BOOST METABOLISM

Just three months after giving birth to daughter Seraphina Rose in early 2009, Jennifer Garner was already working on getting her pre-baby body back. Her trainer Valerie Waters advises her new mom clients to focus on gaining strength. "If you can only exercise 20 minutes three times a week, you should be strength training – squats, push-ups, lunges, planks," she explains. "You'll burn the same amount of calories [as cardio] but you'll also add lean muscle, which speeds up your metabolism."

Click to learn more about how Jennifer got her pre-baby body back.