side plank

This Twilight star's sleek upper body is no accident: She devotes up to 20 minutes of every workout to her arms and shoulders. Ashley sweats it out with LA trainer Autumn Fladmo four or five times a week. Their 90-minute sessions are based on the Tracy Anderson Method and combine dumbbell and resistance-band exercises with dance moves to sculpt sexy muscles and burn fat. "Showing off your arms and shoulders is an easy way to look sexy without revealing too much," says Ashley. "So I really target that area."

The Ashley Green Workout:

Do these arms and shoulder exercises three times a week. Do 1 set of each exercise in order without resting, and then repeat 2 or 3 times.

You'll need: A 5- to 8-pound kettlebell or dumbbell, a stability ball, a resistance tube or band, and a pair of 5- to 8-pound dumbbells. Find gear at

side plank

Seated Stability-Ball Snatch

Works: Shoulders and core

A. Hold a kettlebell or dumbbell in right hand and sit on a stability ball with feet wide. Raise left arm to shoulder height out to side, palm facing down, and extend right arm toward the ground in front of you, palm facing ball.

B. Curl weight toward chest, then press it overhead. Return to starting position and repeat. Do 10 to 12 reps; switch sides to complete set.

side plank

Tempo Pressdown

Works: Triceps

A. Anchor a resistance tube high in front of you and hold a handle in each hand, elbows bent 90 degrees and palms facing ground. Bend knees slightly and lean forward from hips (tube should be taut).

B. Slowly extend arms down to your sides, bend elbows, and repeat.Do 10 to 12 reps. Pick up the pace and do 10 to 12 more reps. Finally, do another 10 to 12 reps as fast as you can (while maintaining control).

side plank

Biceps Burner

Works: Biceps

A. Hold a dumbbell in each hand at sides. Curl weights toward shoulders, lower, and repeat. Do 5 reps. Next, bend right elbow 90 degrees and extend left arm at side.

B. Curl left hand toward shoulder, lower, and repeat. Do 5 reps, then repeat on opposite side. Finally, alternate curling one hand at a time toward your shoulder; as one lowers, the other is lifting. Do 5 reps per side.