If you make a few adjustments, however, you can turn the modest side plank into a surprisingly tough exercise that challenges ...

A staple of many core workouts, most runners will be familiar with the side plank exercise. But you may be surprised to learn that it's one of the best exercises you can do for working your deep core.

Don’t worry—you can build up to holding a side plank for longer. Start by doing side bridges, which have the same setup for your upper body but with your knees bent at a 90-degree angle and ...

Many. Officially called the adductor side plank, the method to follow here is to stack your outer leg, not on the floor, but an elevated surface like a bench or a box. The other leg is held at an ...