This Leg Workout Shreds Every Muscle in Your Lower Body

If it's too easy, level up and grab two dumbbells.

Sets: 3

Reps: 20

Rest: 60

Lunge forward as far as you can with your right leg, bending your trailing knee so it almost brushes the floor. Use the heel of your right foot to push yourself off into the next lunge, this time leading with your left leg.