08-02-2010, 12:51 PM
Thanks!
Should I put my best effort into this 4K run?
I don't have a heart rate monitor, but I can sure measure the 1K split times.
Thanks,
Yohay.
Should I put my best effort into this 4K run?
I don't have a heart rate monitor, but I can sure measure the 1K split times.
Thanks,
Yohay.