In total, the abnormal part of the graph lasts about 8 minutes.
was the chest strap nice and firm to get good chest contact?
did the period you mention coincide with a downhill section, or leaning forward?
often if it is loose it will give errant readings.
was the chest strap nice and firm to get good chest contact?
did the period you mention coincide with a downhill section, or leaning forward?
often if it is loose it will give errant readings.
as for MaxHR