The top Polar Precision Performance software screen shows heart rate points over a 23 minute road race. Our runner ran four laps on a smooth road course. Each lap is separated by a small vertical line rising from the lower horizontal graph line. The lower screen shot shows time spent in each heart rate zone for four months; from July 15th to October 14th. Clearly this runner is not getting enough exercise!
Graphs are courtesy of Jamie Sarkisian, a noted New England runner and cyclist and long time Polar heart monitor enthusiast.
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