22-07-2014, 10:11 AM
Jon .. do you use a heart rate monitor?
if so, what is your HR when running at 3.50 per k on the 2k session for example
what are the heart rates you work at?
TheEd
if so, what is your HR when running at 3.50 per k on the 2k session for example
what are the heart rates you work at?
TheEd
