MONITORING APPARATUS FOR MONITORING A USERS HEART RATE AND/OR HEART RATE VARIATION; WRISTWATCH COMPRISING SUCH A MONITORING APPARATUS

摘要

a capacitor (22) which is position able on or near a body part of a person for example a person's limb, for example an arm (3) such that an electrical capacitance of the capacitor (22) is influenced by blood pressure pulses of blood running through the body part wherein the apparatus (4) further comprises a data processor (26) for determining the heart rate and/or heart rate variation from changes in the capacitance of the capacitor (22). Fig. 2