August 14, 2022


How to do shelf jacks?

When it comes to building a strong core, planks are one of the most popular exercises to add to your routine (here’s how long you have to hold a plank to see results), but if you’ve already mastered the bodyweight plank, what else can you do to increase the intensity? The answer: make the plank move.

Plank jacks are a dynamic abs exercise because they force you to engage the stabilizer muscles in your core to secure your body as you jump your legs in and out. You train your deep abs, as well as your upper and lower body. While deep stabilizer muscles may not be an aesthetic goal, they are super important for balance and coordination in most sports, including running, tennis, and weightlifting. But how do you make plank jacks with the right shape and what are the different variations to try? Read on to find out more.

How do you make a plank jack?