Polar invented the first EKG accurate wireless heart rate monitor back in 1977 as a training tool for the Finnish National Cross Country Ski Team. They used in conjunction with their intensity training by heart rate and this concept took the athletic world by storm back in the 80’s.
Today, the same concept of heart [...]
Entries Tagged as 'Fitness'
Polar F11 Heart Rate Monitor Watch
September 10th, 2007 · View Comments
Tags: Electronics · Fitness · Reviews