Try this 5 minute plank workout to strengthen up your core and create lean abs! Planks are the rockstar of abdominal work. If you are unclear about the many benefits of the plank or if you want to ace your form, you might want to check out Perfecting Your Plank. Suffice it to say, the benefits of the abdominal plank are many! But now it’s time to open your eyes to all the different variations the plank has to offer!