Doing a jack knife seems like a dangerous thing, but the only dangerous thing about it is your sexy muscle tone afterwards!
Lucky for you (okay, and us too!), we have some help here at FitPerez… from Christopher Slevin and Sweat Garage to show us the right way!
Sweat Garage is a great place for working out — and here on FitPerez.com, they’re great for advice and tips!
So fab!
Check out the video (above) and learn the perfect jack knife!
Don’t forget to tweet questions to Chris @ChristopherSlev or his Facebook HERE! If U wanna know more about the jack knife OR anything else, U can always email us at Questions@FitPerez.com!!!