running bra.... 
WHY HEART RATE MONITORS
As a runner, you have probably been programmed to count the miles
and live by the stopwatch. This is how runners have trained for
years. The more miles the better and the faster the better. But the
approach to training has been changing over the past several
years.
Athlete turned coach Marcus O'Sullivan, who has run more sub
4-minute miles than anyone, credits heart rate for prolonging his
career. He was a skeptic like many runners are today. But you can't
argue with success. O'Sullivan now trains his collegiate athletes
using the same technology that he once resisted and later
adopted.
To understand how an HRM can help your running, we established the
Polar 3 Point Message:
In order to reach your goals, you need
to train at the right intensity.
Heart rate is the only accurate measurement of your intensity or
your exertion level.
A Polar HRM is the easiest and most accurate way to continuously
measure your heart rate.
If you're not using one, you probably know someone that does. You
may have resisted until now, and hopefully that will end here.
There are many different thoughts on how to get the most out of
your running. The key to success is variety. Endurance workouts,
tempo runs and AT intervals are at the heart of an effective
program. A heart rate monitor is the one thing that can lead you
through each one of those workouts, and give you the valuable
feedback that can help you turn weaknesses into strengths, improve
your fitness, or lose those last few pounds.
For fitness runners, you will benefit the most by running in a
particular zone each day. For weight management, running in the
60-70% zone will help you burn fat and build endurance. Increase
your fitness by doing tempo runs in the 70-80% zone. An HRM is not
just for competitive runners. It can help any runner!
To prepare for competition, it's important that you build
endurance, strength and speed. For endurance and recovery workouts,
it paces you so you don't overdo it. For tempo runs, it keeps you
on track. And for interval workouts, it makes sure you go hard
enough and you recover when it's time. Nothing else can guide you
that way. It can show you when you're dehydrating, or running out
of nutrition, or not recovered from a previous days workout. It
allows you to analyze workouts and races. Racing flats are great.
But if you're not training right, you might as well be wearing work
boots.
If you're very new to the concept of an HRM, you might be wondering
WHAT'S AN HRM. It consists of a watch worn on your wrist, and a
transmitter that you comfortably wear against your skin and around
your chest. The transmitter picks up the signals of your heart, and
sends them wirelessly to the watch you wear on your wrist. It's
that simple. No wires, no taking your pulse and doing a
multiplication equation. Just look at your wrist and it's there.
AND THE KEY, IT'S DISPLAYED CONTINUOUSLY. The continuous display is
what makes it effective. It's there to guide you during your entire
run. Just like a coach with a clipboard and a bullhorn. Just as
effective, but a little more subtle!
