Have You Tried This Core Exercise? Plank VariationOctober 13, 2015This core exercise I recently learned from Fighter Abs. It's… https://i0.wp.com/ryansaplan.com/wp-content/uploads/2015/10/core-exercise-plank-with-side-touch.jpg?fit=470%2C256&ssl=1 256 470 Ryan Saplan https://optinryansapla.wpengine.com/wp-content/uploads/2022/05/RyanSaplan_Logo_square_color_onlight700-1-300x155.png Ryan Saplan2015-10-13 18:00:462015-10-24 23:29:46Have You Tried This Core Exercise? Plank Variation