Side, elbow, reverse or superman plank – they all came from the traditional full plank (planking with your arms straight and palms on the ground). When choosing a core exercise, you really can not go wrong with planks. Full plank does not challenge your ABS as elbow plank, but it is a great option if you want to strengthen your upper body as it engages a lot of arm muscles, specifically the triceps. If you want to focus more on your ABS, consider elbow plank in which your arms are bent, elbows are directly beneath shoulders, and your weight rests on your forearms. It also takes pressure off the wrists from being bent at a 90-degree angle. If you are still not decided how to plank, you can try a dynamic plank. Here you changing from the full plank to the elbow plank and then back to the full. Regardless of how you planking, keep it up.