Colbie Caillat's Super Slim-Down Workout

Reverse Lunge with Two-Way Raise

Targets: Shoulders, butt, and legs

• Stand with feet hip-width apart, holding a 3- to 5-pound dumbbell in each hand.
• Lunge back with right leg, bending both knees 90 degrees, as you raise extended arms to sides at shoulder level, palms down. Lower arms and return to start.
• Do 15 reps, alternating legs.
• Repeat, lifting arms in front of you.
Next: Reverse Crunch