It has been demonstrated to be related to total distance run in a match, the distance run at high intensity, and the sprinting distance (Mohr et al 2003, Krustrup at al 2008, Bearden at al 2013) The Intermittent Recovery test is one of the most well researched soccer-specific fitness tests and is an accurate benchmark for preseason fitness levels.

First, just want to say I'm a long time reader and part time poster.I had to change my email and so am starting over with a new username as a newbie!