Plank Jack
How do you do a Plank Jack?
Step 1
Begin on all fours. Place your palms shoulder-width apart, making sure your shoulders are aligned directly over your wrists.
Step 2
Extend your legs out behind you to get into plank position. Tuck your pelvis under and ensure your middle back is in a hollow position.
Step 3
Keeping your shoulders over your wrists and your abs drawn in, jump your feet out slightly wider than hip-distance apart. Jump them back together and repeat the exercise.
How do you modify a Plank Jack?
Plank Jack for Prenatal
Plank Jack for Beginners
Advanced Plank Jack
Plank Jack for Weak Wrists
Plank Jack for Weak Shoulders
What are the benefits of a Plank Jack?
Core Strength
Full-body Strength
Cardio
Expert opinion
Plank Jacks are a great way to get your heart rate up while working on your core.
Jason McWalter,MCW Health and Fitness in Seattle