Patent ID: 8224429
Filing Date: 2012-07-17
Classification: A61B,A63B,G04G,G16H

Abstract:
1. A method of determining a heart rate zone by a portable electronic device configured for attachment to a user, the method comprising: prompting the user, by the portable electronic device, to exercise at a first level of exertion; calculating, by the portable electronic device, a first representative heart rate based on a first measurement of the user's heart rate after instructing the user to exercise at the first level of exertion; designating the first representative heart rate as a lower limit value for the heart rate zone; prompting the user, by the portable electronic device, to exercise at a second level of exertion more strenuous than the first level of exertion; calculating, by the portable electronic device, a second representative heart rate based on a second measurement of the user's heart rate after instructing the user to exercise at the second level of exertion; and designating the second representative heart rate as an upper limit value for the heart rate zone.