Jillian Michaels' 20-Minute Workout
Tone your entire body with the Biggest Loser trainer Jillian Michaels' super-efficient 20-minute workout routine.
Single-Leg Squat with Corkscrew Curl
Hold a dumbbell in each hand at sides, palms facing behind you, and stand with weight on left foot, right foot raised. Squat on left leg as you extend arms down.
Rise up as you curl weights toward your shoulders, palms facing up. Return to the starting position and repeat for 30 seconds. Switch legs and repeat.