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 ...

You want to strengthen your abs – so what should you do? Bicycle crunches? V-ups? Or how about the well-known move that is the plank? If you’ve already been incorporating planks into your strength ...

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 ...

Everyone wants a strong core. The first thing I ask every new Drucker Fitness client is what their fitness goals are. To this day, I have never had a client who did not mention having "ripped abs" or ...

The plank feels endless—but it’s one of the most effective core exercises. Your ideal hold time depends on your age, fitness ...

A plank is more difficult than it looks. You have to use all of your muscle groups, including your core, abs, arms, back, shoulders, glutes and legs. It’s normal to struggle to do a plank. Many of my ...

This particular cardio-core move has become a mainstay in a wide range of modalities, from HIIT to boxing to Pilates. It involves holding a plank while jumping your legs in and out, mimicking the ...