Trending on Twitter right now…planking. No, not the planking that was so 2011.
In 2013, people are doing real planks for fitness, and in case you've never heard of planking, our fitness expert Nick Parker explains.
"A plank is basically an isometric exercise that you're holding completely still that targets your entire core. Simplest way to explain what your core is, if I were to cut off your arms and your leg, that is your core
We had one of Nick's clients plank for us while we spoke about proper planking form.
"If you're really a beginner, you can start out by planking on your knees. If you're right in the middle of the road, you can plank from regular position, which is elbows and toes, and if you're advanced, you can go to single leg planks, dynamic planks moving planks, and side planks. There's all kinds of ways to advance the plank."
Jessica, who is demonstrating how to plank, is clearly an advanced planker. She's takes Nicks boot camp class a couple days a week. She also plays tennis and does Zumba. Basically, she's in really good shape.
We had her planking in the traditional position and going for time. Part of the planking trend is tweeting your record time.
"I think it's hilarious. There's no harm in exercising more, and as long as you're doing it in a safe environment," said Parker, "planking is a great exercise to keep your posture strong, your core strong, no matter what level fitness you're at."
Nick said it doesn't burn a lot of calories, but it helps to flatten your stomach and define your abs. You can see Jessica's muscles shaking when she planks, and that's a good thing.
So maybe planking might be a great exercise to start doing before bikini season? "One of the best," said Parker.
Parker said it's also great for new moms. "After having kids, the transverse abdominous gets relaxed and starts to hang a little. It will pull that back in and start to tighten it back up and tone the front of your stomach.
Jessica held out for more than three 3 minutes, so now she's putting her boot camp buddies on notice.
"Just try to beat 3 minutes and 15 seconds," she said with a laugh.
On the web: http://nickparkersbootcamp.com/