Long Speed Posted on Sat - February 6, 2016 by drewseaver 1 set of core Brace x10 Bridge x10 Quadruped SL HE x10 5x400m w/ full rest (4-5 minutes). 67,65,64,64,65. Good workout for 800m/1600m runners – or good workout for really any type of runner ! Share this:TwitterFacebookLike this:Like Loading... Related