Planks and jumping jacks are perfectly fine workout moves. But if you combine the two together, you can actually get an even better total-body workout. Meet: the plank jack! Plank jacks involve ...

Pilates pro Simone de la Rue demonstrates how to do a plank jack—aka the ultimate cardio and core-strengthening move—with proper form. A little known fact about planks: In addition to working nearly ...

‘The plank jack is a similar exercise to the press up and front plank, in that it requires loading and control of the core in a lengthened position and involves using the arms and shoulders to ...

Just when you thought holding a plank couldn’t get any more difficult, TikTok has to go and create a whole plank dance challenge to take your core workout to the next level. While this trend is super ...