Biggest Loser trainer Kim Lyons muscle-building workout
Biggest Loser trainer Kim Lyons shows you how to burn calories (and build muscles) fast, with this 15-minute full-body workout.
Do these moves 3 to 5 times a week.
Uptown Arms A
for shoulders and triceps
Stand with your feet hip-width apart and legs slightly bent, holding a 5-pound dumbbell in each hand (palms facing each other) in front of your thighs. Keep your...