Corporate spy Claire Stenwick in DuplicityWORKOUT PLAN
"We change her workouts depending on the role," says celebrity trainer Kathy Kaehler
, who has worked with Roberts for over a decade. "I try to keep it very creative so she doesn't get bored." Kaehler used the pool at Roberts' Malibu home for Duplicity
workouts so she could spend more time with her three children. They did a mix of running, cross-country ski movements and arm exercises in deep water. "She needs to look good on-screen, but she also needs the strength and energy to run around after her kids offscreen," says Kaehler. "Swimming and water exercises are great ways to build up endurance and stay fit."