Measurement of Human Heart Rate during Usual Activity
- 16 October 1959
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 130 (3381) , 976-977
- https://doi.org/10.1126/science.130.3381.976
Abstract
A small, rugged, self-contained cumulative heart-beat counter has a transistorized amplifier, a watch movement made into a counter, and a battery. The counter is activated by each R -wave of the electrocardiographic complex obtained from newly designed precordial electrodes. Heart beats can be counted for as long as 24 hours.This publication has 0 references indexed in Scilit: