JACK UP YOUR CORE AND METABOLISM WITH THIS PLANK JACK COMPLEX from MH fitness director BJ Gaddour (@bjgaddour)! Jacking your feet in and out provides a great dynamic stability challenge that makes your abs scream and also ramps up your heart and metabolic rate. Do each of the following 4 moves for 15 seconds each with no rest between them: Plank on Hands Uneven Plank- L Uneven Plank- R Plank on Forearms After doing all 4 moves, rest a minute. That's 1 round. Perform up to 5 total rounds…
{}