If you want to go beyond basic heart rate monitoring and truly
optimize your regimen, then Polar may have the right tool. Polar is
the biggest manufacturer of heart rate monitors for athletes and for
those who just want to achieve their fitness goals. We tested the
Polar S610 heart rate monitor (see it up close), part of Polar's
S-series of devices for "serious athletes." It's made not
only for runners, but for bikers as well.
This heart rate monitor system works like FitSense's, except that it
does much, much more than just basic heart monitoring. In addition to
providing information on heart rates and keeping you within ranges
that you specify when exercising, the S610 is also the first device to
calculate such esoteric values as V02 Max and nutrition expenditure.
Athletes use V02 Max to determine how efficiently their bodies use and
deliver oxygen to the muscles. Traditionally, this is calculated using
an elaborate respirator and HRM setup. Polar promises an easier way of
measuring this and other factors on the way to improving performance.