Plank Jumping Jacks Aug 31, 2016 Strengthen your core and arms doing Plank Jumping Jacks. It will get your cardio going, too! [videojs mp4=”https://www.personal-fitness-trainer-austin.com/videos/Plank.Jacks.mp4″ ogg=”https://www.personal-fitness-trainer-austin.com/videos/Plank.Jacks.ogv” poster=”https://www.personal-fitness-trainer-austin.com/videos/Plank.Jacks.jpg” width=”350″] Take Care, Margo