Apr 7, 2009 #1 J JennaP New member May 22, 2008 23 0 1 I've started doing sprints on the treadmill, and i'm not sure how fast i should be going or for how long to get the best results. Anybody have any advice?
I've started doing sprints on the treadmill, and i'm not sure how fast i should be going or for how long to get the best results. Anybody have any advice?