Celebrity Shape-Up

"On the days we didn't train together, Katherine would do 20 swings with the Kettlebell and 5 one-legged squats on each side," says Beaver.
TRY IT: One-handed arm swings
• In squat position, pick up the Kettlebell with an overhand grip.
• Explode to upright position with your arms extended, which sends the Kettlebell in an upward motion (keep shoulders loose, elbows locked).
• As Kettlebell begins downward swing, return to squat position.
• Continue with the swinging motion, following it like a pendulum for 10 reps.
• Repeat with other arm.
HER EQUIPMENT
Russian Kettlebells, $47; buy online now at kettlebells.com
Kettlebell Basix DVD, $20; buy online now at misfitla.com.