If you are looking for a real challenge, then try doing the RKC Plank. Invented by a former Soviet special forces trainer, ...

Keeping your body controlled while moving an object develops functional core stability better than static movements ...

Add Yahoo as a preferred source to see more of our stories on Google. While vanity muscles are nice, building a strong, stable base is crucial for all of your other gym and athletic goals. "Planking ...

Add Yahoo as a preferred source to see more of our stories on Google. Love ‘em or hate ‘em, planks are a popular fitness move for a reason: they’re effective. This one move engages the entire body, ...

Get your stopwatch out.

Spoiler alert: There is <a href="https://www.womenshealthmag.com/fitness/a19909906/what-it-takes-to-get-a-six-pack/" id="8cce8813-8264-31a7-acbf-afc9c065e83e"> no ...

Planks are a simple, equipment-free exercise that strengthen your core, improve posture, and protect your back ...

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 ...

Love ‘em or hate ‘em, planks are a popular fitness move for a reason: they’re effective. This one move engages the entire body, especially the abs. Planks put the entire core muscle group to work, ...