why not to do sit ups and crunches Post author:Cannon Performance Post published:March 2, 2010 Post category:General News http://www2.macleans.ca/2010/01/19/the-man-who-wants-to-kill-crunches/ as i have been saying to folk for some time now. You Might Also Like How Strength Training helped Rory McIlroy August 12, 2014 Blog Post from University of Louisville Golf Coach Aaron O Callaghan December 30, 2016 “The weak don’t last. The strong do.” Ruby Walsh January 3, 2014
