Heart rate monitors work by measuring which of the following physiological signals: Pulse pressure Electrical conduction Korotkoff sounds Contraction force

To address the question regarding which physiological signals heart rate monitors measure, let's examine each option provided:

1. Pulse pressure: This refers to the difference between systolic and diastolic blood pressure. Heart rate monitors do not directly measure this; instead, they monitor Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.