Advertisement

Starling’s Law of The Heart Revisited

  • H. E. D. J. ter Keurs
  • M. I. M. Noble

Part of the Developments in Cardiovascular Medicine book series (DICM, volume 89)

Table of contents

About this book

Introduction

H. E. D. J. TER KEURS & M. I. M. NOBLE The "Starling's Law of the Heart" and "The Frank-Starling Mechanism" have long been the cornerstone of cardiac mechanical physiology. It is often forgotten that Frank and Starling carried out fundamentally different exper­ iments. Frankl measured the isovolumic pressure developed by frog heart at different volumes. He therefore discovered the pressure-volume-volume rela­ tionship which depends directly on the force-length relationship of the 2 sarcomeres. Starling ,3 studied cardiac shortening as manifest by cardiac output and its relationship to end-diastolic conditions as manifest by right atrial pressure. Thus he was studying the ability of cardiac muscle to shorten more at a given load from a greater initial length. Starling in the promulga­ 4 tions of his law implied a common mechanism for these two phenomena and spoke of the "energy liberated" being a function of initial muscle fiber length. However, there has been much confusion about the interrelationship between the two different aspects studied by Frank and Starling. The 1960s saw the era of isolated cardiac muscle mechanics, beginning with 5 the paper of Abbott and Mommaerts. Whole muscle length-tension relations were equated with sarcomere-length-tension relations by fixation of muscle at a particular point on the curve and determination of sarcomere length by electronmicroscopy.

Keywords

heart

Editors and affiliations

  • H. E. D. J. ter Keurs
    • 1
  • M. I. M. Noble
    • 2
  1. 1.Department of Medical Physiology, Faculty of Medicine, Health Science CentreUniversity of CalgaryCalgaryCanada
  2. 2.King Edward VII HospitalWest SusexUK

Bibliographic information

  • DOI https://doi.org/10.1007/978-94-009-1313-4
  • Copyright Information Springer Science+Business Media B.V. 1988
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-94-010-7084-3
  • Online ISBN 978-94-009-1313-4
  • Series Print ISSN 0166-9842
  • Buy this book on publisher's site