DonnaJean Wilde, 59, holds Guinness World Records for the longest plank and most push-ups by a woman. She can plank for 4.5 hours and do 1,575 push-ups in an hour. She shared tips on how to get and ...

Add Yahoo as a preferred source to see more of our stories on Google. When it comes to building core strength, crunches have fallen out of favor and the plank is now considered the gold standard.

Pilates pro Simone de la Rue demonstrates how to do a plank jack—aka the ultimate cardio and core-strengthening move—with proper form. A little known fact about planks: In addition to working nearly ...

I’d never claim that the plank is a "bad" core exercise. It’s great for working the deep stabilizing muscles in your core as well as your abs and lower back, and it’s an approachable move that most ...

If you’ve ever tried to hold an abdominal plank during a workout, you know how challenging it can be even for just a few seconds. For many people, doing a plank — which is when you support your body ...

Next time your trainer asks you to hold a dreaded minute-long plank, just remember: Your grandma can do it for much longer — well, maybe not yours, but somebody's. DonnaJean Wilde, a grandmother of 12 ...

So, What Muscles Do Planks Actually Work? originally appeared on Parade. Planks are one of the most versatile and accessible exercises out there. You don’t need any equipment, and you can do them ...