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.

For the side plank hip dip, you get into the side plank ... Pause, then drive it high. That’s one rep. Begin with three sets of 10-20 on each side and develop from there. Here’s what I found ...

However, if your goal is to strengthen the entirety of your core and work the smaller muscles to support you in big lifts, you might want to consider other variations of a plank. Lie on your right ...