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 ...

The plank is one of the most underrated exercises in bodyweight fitness. Planks for beginners start with the low plank (a.k.a forearm plank) and build up to high plank, side plank, reverse plank and ...

Sailors assigned to the amphibious command ship Blue Ridge perform planks during a physical readiness test at Fleet Activities Yokosuka, Japan, Oct. 13, 2021. (MCSN Trinity Benjamin/Navy) The Navy has ...