To gauge your ability to do a side plank, try this 1-minute challenge. How to do the side plank test Lie on the floor on your left side, propped up on your left forearm.

Here's how to do the grounded Copenhagen plank, the benefits, and what happens when you do it for two minutes every day for one week.

An advanced variation on the classic full-body move, the Copenhagen plank adds some serious spice to the exercise we all love to hate - and unlike a classic plank, this one will w ...

Even pros shouldn’t go beyond one minute of forearm plank—also at a maximum of four training days ... The exercise becomes ...