Crunches are easily the most common of the abdominal exercises but they are certainly not the most effective way to strengthen your core. Read the transcript at https://www.quickanddirtytips.com/health-fitness/exercise/how-to-plank-like-a-pro-and-avoid-these-6-mistakes Check out all the Quick and Dirty Tips shows: www.quickanddirtytips.com/podcasts FOLLOW GET-FIT GUY Facebook: https://www.facebook.com/GetFitGuy Twitter: https://twitter.com/getfitguy