Human Walking: The Gait Cycle
There are eight phases of the walking gait cycle. Understanding the terminology of the phases of gait is important when reviewing studies of the pathomechanics of foot pathologies. External moments created by ground reaction force drive the motion of skel
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Pathomechanics of Common Foot Disorders
Douglas H. Richie Jr
Pathomechanics of Common Foot Disorders Original Illustrations by Kevin B. Rosenbloom
Douglas H. Richie Jr California School of Podiatric Medicine at Samuel Merritt University Oakland, CA USA
ISBN 978-3-030-54200-9 ISBN 978-3-030-54201-6 (eBook) https://doi.org/10.1007/978-3-030-54201-6 © Springer Nature Switzerland AG 2021 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Switzerland AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
To my father, Douglas H. Richie, who always believed in me, who supported me throughout my education, and encouraged me to write this book. To my wife, Cathleen Richie, whose patience and continuous affirmation inspired me to complete this project. This book would not be possible without the love and support from both of them.
Preface
Pathomechanics (patho-mi-kan'i-ks) Changes in the normal biomechanical function of a joint, an extremity, or the torso as the result of trauma or disease. Source: The Free Dictionary
This book is about common disorders of the human foot and ankle. The primary purpose is to explore the role of mechanical factors which contribute to the cause of foot pathologies. Reciprocally, the mechanics of the foot are in turn significantly altered by those same pathologies. Before studying foot disorders, the first chapters of this book will provide an understanding of how the human foot functions during its primary activities of standing and walking. It will be shown that the unique anatomic features of the human foot are the same structures which are vulnerable to injury and deformity. Early in my career, I was influenced by certain theories of foot function which directed my philosophy in the evaluation and treatment of pat
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