Plank jacks are a combined cardio and core-strengthening exercise. They can help you strengthen the muscles of both the upper and lower body. Adding plank jacks to your exercise routine a few times a ...

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 ...

‘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 ...