Originally Posted by vrkelley
This is true but muscles need time to rebuild otherwse they get overused/overtrained. The HRM let's you know when your heart isn't keeping up with the demand. You've suppposed to cycle within a zone but while commuting it distracting... I just have mine beep when the HR goes over the limit for too long.
I see what you mean. I guess in my case, 9 miles at a time is not long enough to overuse the muscles. For me, excercise keeps me from falling asleep working whole day in front of my computer.