http://www.strengthtrainingblog.com Low cost, effective training guides & reviews Fri, 10 Sep 2010 10:46:49 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 http://www.strengthtrainingblog.com/equipment/what-is-the-purpose-of-heart-rate-monitors http://www.strengthtrainingblog.com/equipment/what-is-the-purpose-of-heart-rate-monitors#comments Sat, 31 Oct 2009 18:44:40 +0000 Dom Leste http://www.strengthtrainingblog.com/?p=108 http://www.strengthtrainingblog.com/equipment/what-is-the-purpose-of-heart-rate-monitors/feed 0