The Best Cardio Bodyweight Exercises You Can Do Right in Your Living Room

"Plank jacks combine core stabilization with cardio, making them a powerful move for building core strength and increasing your heart rate," Cooper says. Here's how to do plank jacks:

• Start in a plank position with your shoulders stacked directly over your wrists.
• Brace your core, and jump your feet out wider than shoulder width.
• Jump your feet back together to the starting position.
• Repeat for 10 reps.