If You're Short on Time, You've Got to Do This Quick, Muscle-Quivering Bodyweight Workout

• Stand with your feet together and your knees soft. Jump and come into a lunge with your left leg forward.
• Push off with both feet, jumping them together, then hopping into a lunge with your right leg in front.
• Jump your feet back together to complete one rep.
• Complete 10 reps.

If you find plyo lunges hard on your knees, do alternating back lunges instead.