Create a goal aligned training session

Essentials of Strength Training and Conditioning

Fourth Edition

Human Kinetics

G. Gregory Haff, PhD, CSCS,*D, FNSCA Edith Cowan University, Western Australia

N. Travis Triplett, PhD, CSCS,*D, FNSCA Appalachian State University, Boone, NC

EDiTorS

www.ebook3000.com

 

 

Library of Congress Cataloging-in-Publication Data

Essentials of strength training and conditioning / National Strength and Conditioning Association ; G. Gregory Haff, N. Travis Triplett, editors. — Fourth edition.

p. ; cm. Includes bibliographical references and index. I. Haff, Greg, editor. II. Triplett, N. Travis, 1964- , editor. III. National Strength & Conditioning Association (U.S.),

issuing body. [DNLM: 1. Physical Education and Training–methods. 2. Athletic Performance–physiology. 3. Physical Conditioning,

Human–physiology. 4. Physical Fitness–physiology. 5. Resistance Training–methods. QT 255] GV711.5 613.7’1–dc23

2014047045

ISBN: 978-1-4925-0162-6

Copyright © 2016, 2008, 2000, 1994 by the National Strength and Conditioning Association

All rights reserved. Except for use in a review, the reproduction or utilization of this work in any form or by any electronic, mechanical, or other means, now known or hereafter invented, including xerography, photocopying, and recording, and in any information storage and retrieval system, is forbidden without the written permission of the publisher.

Notice: Permission to reproduce the following material is granted to individuals and agencies who have purchased Essentials of Strength Training and Conditioning, Fourth Edition: pp. 636, 637-639, 645. The reproduction of other parts of this book is expressly forbidden by the above copyright notice. Persons or agencies who have not purchased Essentials of Strength Training and Conditioning, Fourth Edition, may not reproduce any material.

Permission notices for material reprinted in this book from other sources can be found on pages xv-xvi.

The web addresses cited in this text were current as of April 2015, unless otherwise noted.

Acquisitions Editor: Roger W. Earle; Developmental Editor: Christine M. Drews; Managing Editor: Karla Walsh; Copy- editor: Joyce Sexton; Indexer: Susan Danzi Hernandez; Permissions Manager: Dalene Reeder; Graphic Designer: Nancy Rasmus; Cover Designer: Keith Blomberg; Photographer: Neil Bernstein, unless otherwise noted; all photos © Human Kinetics, unless otherwise noted; Photo Asset Manager: Laura Fitch; Visual Production Assistant: Joyce Brumfield; Photo Production Manager: Jason Allen; Art Manager: Kelly Hendren; Associate Art Manager: Alan L. Wilborn; Art Style Development: Joanne Brummett; Illustrations: © Human Kinetics, unless otherwise noted; Printer: RR Donnelley

We thank The Fitness Center in Champaign, Illinois, and the National Strength and Conditioning Association in Colorado Springs, Colorado, for assistance in providing the locations for the photo shoot for this book.

The video contents of this product are licensed for private home use and traditional, face-to-face classroom instruction only. For public performance licensing, please contact a sales representative at www.HumanKinetics.com/SalesRepresentatives.

Printed in the United States of America 10 9 8 7 6 5 4 3 2 1

The paper in this book was manufactured using responsible forestry methods.

Human Kinetics Website: www.HumanKinetics.com

United States: Human Kinetics P.O. Box 5076 Champaign, IL 61825-5076 800-747-4457 e-mail: humank@hkusa.com

Canada: Human Kinetics 475 Devonshire Road Unit 100 Windsor, ON N8Y 2L5 800-465-7301 (in Canada only) e-mail: info@hkcanada.com

Europe: Human Kinetics 107 Bradford Road Stanningley Leeds LS28 6AT, United Kingdom +44 (0) 113 255 5665 e-mail: hk@hkeurope.com

Australia: Human Kinetics 57A Price Avenue Lower Mitcham, South Australia 5062 08 8372 0999 e-mail: info@hkaustralia.com

New Zealand: Human Kinetics P.O. Box 80 Mitcham Shopping Centre, South Australia 5062 0800 222 062 e-mail: info@hknewzealand.com

E6372

www.ebook3000.com

 

 

iii

CONTENTS

Preface vii Accessing the Lab Activities xi Acknowledgments xiii Credits xv

CHAPTER 1 Structure and Function of Body Systems 1 N. Travis Triplett, PhD

Musculoskeletal System 2 • Neuromuscular System 8 • Cardiovascular System 12 • Respiratory System 15 • Conclusion 17 • Learning Aids 17

CHAPTER 2 Biomechanics of Resistance Exercise 19 Jeffrey M. McBride, PhD

Skeletal Musculature 20 • Anatomical Planes and Major Body Movements 25 • Human Strength and Power 25 • Sources of Resistance to Muscle Contraction 33 • Joint Biomechanics: Concerns in Resistance Training 37 • Conclusion 40 • Learning Aids 41

CHAPTER 3 Bioenergetics of Exercise and Training 43 Trent J. Herda, PhD, and Joel T. Cramer, PhD

Essential Terminology 44 • Biological Energy Systems 44 • Substrate Depletion and Repletion 55 • Bioenergetic Limiting Factors in Exercise Performance 56 • Oxygen Uptake and the Aerobic and Anaerobic Contributions to Exercise 57 • Metabolic Specificity of Training 59 • Conclusion 61 • Learning Aids 62

CHAPTER 4 Endocrine Responses to Resistance Exercise 65 William J. Kraemer, PhD, Jakob L. Vingren, PhD, and Barry A. Spiering, PhD

Synthesis, Storage, and Secretion of Hormones 66 • Muscle as the Target for Hormone Interactions 69 • Role of Receptors in Mediating Hormonal Changes 69 • Categories of Hormones 70 • Heavy Resistance Exercise and Hormonal Increases 72 • Mechanisms of Hormonal Interactions 72 • Hormonal Changes in Peripheral Blood 73 • Adaptations in the Endocrine System 73 • Primary Anabolic Hormones 74 • Adrenal Hormones 82 • Other Hormonal Considerations 84 • Conclusion 85 • Learning Aids 86

www.ebook3000.com

 

 

Contentsiv

ChaptEr 5 Adaptations to Anaerobic Training Programs 87 Duncan French, PhD

Neural Adaptations 88 • Muscular Adaptations 93 • Connective Tissue Adaptations 97 • Endocrine Responses and Adaptations to Anaerobic Training 102 • Cardiovascular and Respiratory Responses to Anaerobic Exercise 103 • Compatibility of Aerobic and Anaerobic Modes of Training 105 • Overtraining 107 • Detraining 110 • Conclusion 111 • Learning Aids 112

ChaptEr 6 Adaptations to Aerobic Endurance Training Programs 115 Ann Swank, PhD, and Carwyn Sharp, PhD

Acute Responses to Aerobic Exercise 116 • Chronic Adaptations to Aerobic Exercise 120 • Adaptations to Aerobic Endurance Training 124 • External and Individual Factors Influencing Adaptations to Aerobic Endurance Training 124 • Overtraining: Definition, Prevalence, Diagnosis, and Potential Markers 129 • Conclusion 132 • Learning Aids 133

ChaptEr 7 Age- and Sex-related Differences and Their implications for resistance Exercise 135 Rhodri S. Lloyd, PhD, and Avery D. Faigenbaum, EdD

Children 136 • Female Athletes 144 • Older Adults 148 • Conclusion 153 • Learning Aids 154

ChaptEr 8 Psychology of Athletic Preparation and Performance 155 traci A. Statler, PhD, and Andrea M. DuBois, MS

Role of Sport Psychology 156 • Ideal Performance State 156 • Energy Management: Arousal, Anxiety, and Stress 157 • Influence of Arousal and Anxiety on Performance 158 • Motivation 161 • Attention and Focus 163 • Psychological Techniques for Improved Performance 164 • Enhancing Motor Skill Acquisition and Learning 169 • Conclusion 172 • Learning Aids 173

ChaptEr 9 Basic Nutrition Factors in Health 175 Marie Spano, MS, RD

Role of Sports Nutrition Professionals 176 • Standard Nutrition Guidelines 178 • Macronutrients 181 • Vitamins 190 • Minerals 193 • Fluid and Electrolytes 196 • Conclusion 199 • Learning Aids 200

ChaptEr 10 Nutrition Strategies for Maximizing Performance 201 Marie Spano, MS, RD

Precompetition, During-Event, and Postcompetition Nutrition 202 • Nutrition Strategies for Altering Body Composition 216 • Feeding and Eating Disorders 221 • Conclusion 224 • Learning Aids 224

ChaptEr 11 Performance-Enhancing Substances and Methods 225 Bill Campbell, PhD

Types of Performance-Enhancing Substances 226 • Hormones 228 • Dietary Supplements 237 • Conclusion 247 • Learning Aids 248

www.ebook3000.com

 

 

Contents v

ChaptEr 12 Principles of Test Selection and Administration 249 Michael McGuigan, PhD

Reasons for Testing 250 • Testing Terminology 250 • Evaluation of Test Quality 250 • Test Selection 253 • Test Administration 254 • Conclusion 257 • Learning Aids 258

ChaptEr 13 Administration, Scoring, and interpretation of Selected Tests 259 Michael McGuigan, PhD

What are the two or three main points that you think he is making in his arguments in the Banking Concept chapter?

Briefly answer the following questions to the best of your ability (could be a sentence or two about each, but could be more if you like):

Who was Paulo Freire?

Where was he working and who was he working with?

What was the broader context for this work?

What are the two or three main points that you think he is making in his arguments in the Banking Concept chapter?

What are some ways that you think his arguments may or may not apply to your own education in the context of UWB and IAS, or in terms of your education more broadly?

What are some ways that you see Freire’s arguments overlapping with what Antonio Gramsci seems to be getting at in the fragment/reading from his work–perhaps particularly in terms of the last question about your own critical thinking, self-imagination, and education (and within that perhaps especially at a historical moment like the one we are living through right now)? And if you didn’t look up Gramsci, his biography explains a lot about what the heck he might be talking about here!

Excerpts from The Antonio Gramsci reader: selected writings, 1916-1935. Edited by David Forgacs. 2000. New York University Press

A good thing to do before reading Gramsci (or any prominent thinker!) is to look him up and try to understand the situation of his life. Where was he writing? When? Under what conditions and in what contexts? What does his biography tell us about why he might have been asking the questions and thinking about the problems that he was?

Another smart thing to do (again, with this or any ‘dense’ reading is to focus in on specific keywords/terms to understand—look them up and try to understand them, and you are much more likely to understand the different elements, determining factors, and/or ‘levels’ of analysis that Gramsci is bringing together in his unique way of thinking. Write some down as you read!

· From Pages 324-332 in the chapter titled Philosophy, Common Sense, Language and Folklore, starting with the section titled “Notes for an Introduction and an Approach to the Study of Philosophy and the History of Culture”

i Some preliminary reference points

It is essential to destroy the widespread prejudice that philosophy is a strange and difficult thing just because it is the specific intellectual activity of a particular category of specialists or of professional and systematic philosophers. It must first be shown that all [people] are ‘philosophers’, by defining the limits and characteristics of the ‘spontaneous philosophy’ which is proper to everybody. This· philosophy is contained in:

1. language itself, which is a totality of determined notions and concepts and not just of words grammatically devoid of content;

2. ‘common sense’ and ‘good sense’,

3. popular religion and, therefore, also in the entire system of beliefs, superstitions, opinions, ways of seeing things and of acting, which are collectively bundled together under the name of ‘folklore’.

Having first shown that everyone is a philosopher, though in his own way and unconsciously, since even in the slightest manifestation of any intellectual activity whatever, in ‘language’, there is contained a specific conception of the world, one then moves on to the second level, which is that of awareness and criticism. That is to say, one proceeds to the question: is it better to ‘think’, without having a critical awareness, in a disjointed and episodic way, to take part in a conception of the world mechanically imposed by the external environment, i.e. by one of the many social groups in which everyone is automatically involved from the moment of entry into the conscious world (and this can be one’s village or province; it can have its origins in the parish and the ‘intellectual activity’ of the local priest or ageing patriarch whose wisdom is law, or in the little old woman who has inherited the lore of the witches or the minor intellectual soured by his own stupidity and inability to act) or is it better to work out consciously and critically one’s own conception of the world and thus, in connection with the labours of one’s own brain, choose one’s sphere of activity, take an active part in the creation of the history of the world, be one’s own guide, refusing to accept passively and supinely from outside the moulding of one’s personality?

Note I. In acquiring one’s conception of the world one always belongs to a particular grouping which is that of all the social elements which share the same mode of thinking and acting. We are all conformists of some conformism or other, always man-in-the-mass or collective man. The question is this: of what historical type is the conformism, the mass humanity to which one belongs? When one’s conception of the world is not critical and coherent but disjointed and episodic, one belongs simultaneously to a multiplicity of mass human groups. The personality is strangely composite: it contains Stone Age elements and principles of a more advanced science, prejudices from all past phases of history at the local level and intuitions of a future philosophy which will be that of a human race united the world over. To criticize one’s own conception of the world means therefore to make it a coherent unity and to raise it to the level reached by the most advanced thought in the world. It therefore also means criticism of all previous philosophy, in so far as this has left stratified deposits in popular philosophy. The starting-point of critical elaboration is the consciousness of what one really is, and is ‘knowing thyself’ as a product of the historical process to date which has deposited in you an infinity of traces, without leaving an inventory. Such an inventory must therefore be made at the outset.

Note II. Philosophy cannot be separated from the history of philosophy, nor can culture from the history of culture. In the most immediate and relevant sense, one cannot be a philosopher, by which I mean have a critical and coherent conception of the world, without having a consciousness of its historicity, of the phase of development which it represents and of the fact that it contradicts other conceptions or elements of other conceptions. One’s conception of the world is a response to certain specific problems posed by reality, which are quite specific and ‘original’ in their immediate relevance. How is it possible to consider the present, and quite specific present, with a mode of thought elaborated for a past which is often remote and superseded? When someone does this, it means that he is a walking anachronism, a fossil, and not living in the modern world, or at the least that he is strangely composite. And it is in fact the case that social groups which in some ways express the most developed modernity, lag behind in other respects, given their social position, and are therefore incapable of complete historical autonomy.

Note III. If it is true that every language contains the elements of a conception of the world and of a culture, it could also be true that from anyone’s language one can assess the greater or lesser complexity of his conception of the world. Someone who only speaks dialect, or understands the standard language incompletely, necessarily has an intuition of the world which is more or less limited and provincial, which is fossilized and anachronistic in relation to the major currents of thought which dominate world history. His interests will be limited, more or less corporate or economistic, not universal. While it is not always possible to learn a number of foreign languages in order to put oneself in contact with other cultural1ives, it is at the least necessary to learn the national language properly. A great culture can be translated into the language of another great culture, that is to say a great national language with historic richness and complexity, and it can translate any other great culture and can be a world-wide means of expression. But a dialect cannot do this.

Note IV. Creating a new culture does not only mean one’s own individual ‘original’ discoveries. It also, and most particularly, means the diffusion in a critical form of truths already discovered, their ‘socialization’ as it were, and even making them the basis of vital action, an element of co-ordination and intellectual and moral order. For a mass of people to be led to think coherently and in the same coherent fashion about the real present world, is a ‘philosophical’ event far more important and ‘original’ than the discovery by some philosophical ‘genius’ of a truth which remains the property of small groups of intellectuals.

Connection between ‘common sense’, religion and philosophy. Philosophy is an intellectual order, which neither religion nor common sense can be. It is to be observed that religion and common sense do not coincide either, but that religion is an element of fragmented common sense. Moreover common sense is a collective noun, like religion: there is not just one common sense, for that too is a product of history and a part of the historical process. Philosophy is criticism and the superseding of religion and ‘common sense’. In this sense it coincides with ‘good’ as opposed to ‘common’ sense. Relations between science religion-common sense. Religion and common sense cannot constitute an intellectual order, because they cannot be reduced to unity and coherence even within an individual consciousness, let alone collective consciousness. Or rather they cannot be so reduced ‘freely’ -for this may be done by ‘authoritarian’ means, and indeed within limits this has been done in the past.

Note the problem of religion taken not in the confessional sense but in the secular sense of a unity of faith between a conception of the world and a corresponding norm of conduct. But why call this unity of faith ‘religion’ and not ‘ideology’, or even ‘politics’?

Philosophy in general does not in fact exist. Various philosophies or conceptions of the world exist, and one always makes a choice between them. How is this choice made? Is it merely an intellectual event, or is it something more complex? And is it not frequently the case that there is a contradiction between one’s intellectual choice and one’s mode of conduct? Which therefore would be the real conception of the world: that logically affirmed as an intellectual choice? or that which emerges from the real activity of each man, which is implicit in his mode of action? And since all action is political, can one not say that the real philosophy of each man is contained in its entirety in his political action?

This contrast between thought and action, i.e the co-existence of two conceptions of the world, one affirmed in words and the other displayed in effective action, is not simply a product of self-deception [malafede]. Self-deception can be an adequate explanation for a few individuals taken separately, or even for groups of a certain size, but it is not adequate when the contrast occurs in the life of great masses. In these cases the contrast between thought and action cannot but be the expression of profounder contrasts of a social historical order. It signifies that the social group in question may indeed have its own conception of the world, even if only embryonic; a conception which manifests itself in action, but occasionally and in flashes when, that is, the group is acting as an organic totality. But this same group has, for reasons of submission and intellectual subordination, adopted a conception which is not its own but is borrowed from another group; and it affirms this conception verbally and believes itself to be following it, because this is the conception which it follows in ‘normal times’ -that is when its conduct is not independent and autonomous, but submissive and subordinate. Hence the reason why philosophy cannot be divorced from politics. And one can show furthermore that the choice and the criticism of a conception of the world is also a political matter.

What must next be explained is how it happens that in all periods there co-exist many systems and currents of philosophical thought, how these currents are born, how they are diffused, and why in the process of diffusion they fracture along certain lines and in certain directions. The fact of this process goes to show how necessary it is to order in a systematic, coherent and critical fashion one’s own intuitions of life and the world, and to determine exactly what is to be understood by the word ‘systematic’, so that it is not taken in the pedantic and academic sense. But this elaboration must be, and can only be, performed in the context of the history of philosophy, for it is this history which shows how thought has been elaborated over the centuries and what a collective effort has gone into the creation of our present method of thought which has subsumed and absorbed all this past history, including all its follies and mistakes. Nor should these mistakes themselves be neglected, for, although made in the past and since corrected, one cannot be sure that they will not be reproduced in the present and once again require correcting.

What is the popular image of philosophy? It can be reconstructed by looking at expressions in common usage. One of the most usual is ‘being philosophical about it’, which, if you consider it, is not to be entirely rejected as a phrase. It is true that it contains an implicit invitation to resignation and patience, but it seems to me that the most important point is rather the invitation to people to reflect and to realize fully that whatever happens is basically rational and must be confronted as such, and that one should apply one’s power of rational concentration and not let oneself be carried away by instinctive and violent impulses. These popular turns of phrase could be compared with similar expressions used by writers of a popular stamp -examples being drawn from a large dictionary which contain the terms ‘philosophy’ or ‘philosophically’. One can see from these examples that the terms have a quite precise meaning: that of overcoming bestial and elemental passions through a conception of necessity which gives a conscious direction to one’s activity. This is the healthy nucleus that exists in ‘common sense’, the part of it which can be called ‘good sense’ and which deserves to be made more unitary and coherent. So it appears that here again it is not possible to separate what is known as ‘scientific’ philosophy from the common and popular philosophy which is only a fragmentary collection of ideas and opinions.

[. . .]

The question posed here [is] namely this: is a philosophical movement properly so called when it is devoted to creating a specialized culture among restricted intellectual groups, or rather when, and only when, in the process of elaborating a form of thought superior to ‘common sense’ and coherent on a scientific plane, it never forgets to remain in contact with the ‘simple’ and indeed finds in this contact the source of the problems it sets out to study and to resolve? Only by this contact does a philosophy become ‘historical’, purify itself of intellectualistic elements of an individual character and become ‘life’.

(Perhaps it is useful to make a ‘practical’ distinction between philosophy and common sense in order to indicate more clearly the passage from one moment to the other. In philosophy the features of individual elaboration of thought are the most salient: in common sense on the other hand it is the diffuse, uncoordinated features of a generic form of thought common to a particular period and a particular popular environment. But every philosophy has a tendency to become the common sense of a fairly limited environment (that of all the intellectuals). It is a matter therefore of starting with a philosophy which already enjoys, or could enjoy, a certain diffusion, because it is connected to and implicit in practical life, and elaborating it so that it becomes a renewed common sense possessing the coherence and the sinew of individual philosophies. But this can only happen if the demands of cultural contact with the ‘simple’ are continually felt.)

A philosophy of praxis cannot but present itself at the outset in a polemical and critical guise, as superseding the existing mode of thinking and existing concrete thought (the existing cultural world). First of all, therefore, it must be a criticism of ‘common sense’, basing itself initially, however, on common sense in order to demonstrate that ‘everyone’ is a philosopher and that it is not a question of introducing from scratch a scientific form of thought into everyone’s individual life, but of renovating and making ‘critical’ an already existing activity. It must then be a criticism of the philosophy of the intellectuals out of which the history of philosophy developed and which, in so far as it is a phenomenon of individuals (in fact it develops essentially in the activity of single particularly gifted individuals) can be considered as marking the ‘high points’ of the progress made by common sense, or at least the common sense of the more educated strata of society but through them also of the people. Thus an introduction to the study of philosophy must expound in synthetic form the problems that have grown up in the process of the development of culture as a whole and which are only partially reflected in the history of philosophy. (Nevertheless it is the history of philosophy which, in the absence of a history of common sense, impossible to reconstruct for lack of documentary material, must remain the main source of reference.) The purpose of the synthesis must be to criticize the problems, to demonstrate their real value, if any, and the significance they have had as superseded links of an intellectual chain, and to determine what the new contemporary problems are and how the old problems should now be analysed.

 

2

Asb MODULE 5

Nested or Networked? Future Directions for Ecological Systems Theory Jennifer Watling Neal and Zachary P. Neal, Michigan State University

Abstract

Bronfenbrenner’s ecological systems theory (EST) is among the most widely adopted theoretical frameworks for studying individuals in ecological contexts. In its traditional formulation, different levels of ecological systems are viewed as nested within one another. In this article, we use Simmel’s notion of intersecting social circles and Bronfenbrenner’s earlier writing on social networks to develop an alternative ‘net- worked’ model that instead views ecological systems as an overlapping arrangement of structures, each directly or indirectly connected to the others by the direct and indirect social interactions of their participants. We redefine each of the systems discussed by EST—micro, meso, exo, macro, and chrono—based on patterns of social interaction, and then illustrate how this alternative model might be applied in the classic context of the developing child. We conclude by discussing future directions for how the networked model of EST can be applied as a conceptual framework, arguing that this approach offers developmental researchers with a more precise and flexible way to think about ecological contexts. We also offer some initial suggestions for moving a networked EST model from theory to method.

Keywords: ecological systems theory; social networks; context; Bronfenbrenner

Introduction

Originally proposed by Bronfenbrenner (1977, 1979), ecological systems theory (EST) has been widely adopted by developmental psychologists interested in understanding individuals in context. Indeed, Google Scholar reveals that The Ecology of Human Development (Bronfenbrenner, 1979), which first outlined EST, has been cited nearly 15 000 times as of September 2012. Conceptually, EST has been used to motivate a focus on setting-level influences, guiding the development of contextual models to explain a range of phenomena including urban adolescent psychological and academic outcomes (e.g., Seidman, 1991), developmental risk and protective factors for substance use (e.g., Szapocznik & Coatsworth, 1999), youth activity engagement (e.g., Rose-Krasnor, 2009), and family influences on gender development (e.g., McHale, Crouter, & Whiteman, 2003). Empirically, developmental studies have used

Correspondence should be addressed to Jennifer Watling Neal, Department of Psychology, 316 W. Physics Road., 127A Psychology Building, Michigan State University, East Lansing, MI 48824, USA. Email: jneal@msu.edu

Social Development Vol 22 No. 4 722–737 November 2013 doi: 10.1111/sode.12018

© 2013 John Wiley & Sons Ltd

 

 

EST to identify contextual predictors or points of intervention that lie beyond the individual. For instance, studies of children and youth have often examined aspects of the peer, family, classroom/school, and neighborhood microsystems (e.g., Chipuer, 2001; Criss, Shaw, Moilanen, Hitchings, & Ingoldsby, 2009; Gest & Rodkin, 2011; Gifford-Smith & Brownell, 2003; Seidman et al., 1995) or mesosystemic interactions between these microsystems (e.g., Durlak et al., 2007; Serpell & Mashburn, 2012). However, in general, empirical exploration of exosystems and macrosystems in devel- opmental studies applying an EST framework remains less frequent.

Although EST is widely recognized for underscoring the importance of interdepend- ent and multilevel systems on individual development, the precise relationships of systems to one another remain elusive. Bronfenbrenner (1979) originally described ecological systems at different levels as nested within one another, giving rise to EST’s classic graphic portrayal as a set of concentric circles. However, in this article, we argue that conceptualizing ecological systems as nested obscures the relationships between them. Instead, we argue that ecological systems should be conceptualized as networked, where each system is defined in terms of the social relationships surround- ing a focal individual, and where systems at different levels relate to one another in an overlapping but non-nested way. Defining ecological systems in network terms not only provides greater theoretical clarity but also yields a form of EST that more closely matches Bronfenbrenner’s (1945) early recognition of the role of social networks in shaping development.

To build this argument, we begin by reviewing the traditional conceptualization of ecological systems as nested and highlight recent modifications to the theory. Then, drawing on Simmel’s (1955 [1922]) notion of intersecting social circles, we discuss how ecological systems are better conceptualized as networked rather than nested. We illustrate the networked model of EST using the hypothetical example of a developing child. Finally, we discuss implications of this new conceptualization of ecological systems theory for future research.

Ecological Systems as Nested: The Traditional Model

Bronfenbrenner first proposed EST in a series of seminal publications in the 1970s and 1980s. We focus on the theory and definitions provided in The Ecology of Human Development (Bronfenbrenner, 1979), which are largely consistent with his earlier and later writing (Bronfenbrenner, 1977, 1986a, 1986b), and which are summarized in Table 1. Bronfenbrenner (1979) described the topology of the ecological environment as ‘a nested arrangement of structures, each contained within the next’, which must be examined as an interdependent whole to fully understand the forces surrounding a developing individual (p. 22). This approach represented a sharp departure from more traditional approaches to developmental psychology of the day, which he derided as ‘the science of the strange behavior of children in strange situations with strange adults for the briefest possible periods of time’ (p. 19). His initial articulation of EST identified four such structures, or systems—the microsystem, mesosystem, exosystem, and macrosystem—that are nested around a focal individual like a set of concentric circles, or as Bronfenbrenner suggested, a set of Russian dolls (i.e., a matryoshka doll). Thus, nearly all graphical depictions of EST rely on some variation of the concentric circles model shown in Figure 1.

Bronfenbrenner (1979) viewed each system as arising from a setting, which he defined as ‘a place where people can readily engage in face-to-face interaction’

Nested or Networked? 723

© 2013 John Wiley & Sons Ltd Social Development, 22, 4, 2013

 

 

T ab

le 1.

N es

te d

an d

N et

w or

k ed

D efi

n it

io n

s of

E co

lo gi

ca l

S ys

te m

s C

on st

ru ct

s

C o n st

ru ct

N es

te d

(f ro

m B

ro n

fe n

b re

n n

er ,1

9 7

9 )

N et

w o

rk ed

E co

lo g ic

al E

nv ir

o n m

en t

‘. .

. a

n es

te d

How might they have shaped the meaning that service users place on their own circumstances, identities, etc.?

Need a 200 word abstract regarding the following topic and a 3-4 page literature review (I’ll provide the articles )

Abstract: Child Welfare: An analysis of the policies and implications of the NYC foster care system

Consider the ways in which the history of settler colonialist society, its ideologies, beliefs, values, language and ways of knowing, shape the manner in which social work is currently practiced.

• How do they contribute to the experiences of service users as they interface within the system you have chosen to write about?

• How might they have shaped the meaning that service users place on their own circumstances, identities, etc.?

• How do they inform how you, as the practitioner, utilize your power and positionally in the processes of assessment, engagement and intervention?

• What are some of the strategies for dismantling these types of thoughts, policies and practices?

• What are some alternative, decolonized thoughts, policies and practices and the possibilities that might emerge from these shifts?

Montclair State University Montclair State University

Montclair State University Digital Montclair State University Digital

Commons Commons

Department of Public Health Scholarship and Creative Works Department of Public Health

Spring 5-8-2014

Pregnant Teens in Foster Care: Concepts, Issues, and Challenges Pregnant Teens in Foster Care: Concepts, Issues, and Challenges

in Conducting Research on Vulnerable Populations in Conducting Research on Vulnerable Populations

Lisa D. Lieberman Montclair State University, liebermanl@montclair.edu

Linda L. Bryant Inwood House

Kenece Boyce Inwood House

Patricia Beresford New York City Regional Office

Follow this and additional works at: https://digitalcommons.montclair.edu/public-health-facpubs

Part of the Child Psychology Commons, Clinical Psychology Commons, Counseling Psychology

Commons, Developmental Psychology Commons, Early Childhood Education Commons, Educational

Psychology Commons, Health and Physical Education Commons, Health Psychology Commons, Human

Factors Psychology Commons, Life Sciences Commons, Medical Education Commons, Medical Sciences

Commons, Public Health Commons, and the School Psychology Commons

MSU Digital Commons Citation MSU Digital Commons Citation Lieberman, Lisa D.; Bryant, Linda L.; Boyce, Kenece; and Beresford, Patricia, “Pregnant Teens in Foster Care: Concepts, Issues, and Challenges in Conducting Research on Vulnerable Populations” (2014). Department of Public Health Scholarship and Creative Works. 48. https://digitalcommons.montclair.edu/public-health-facpubs/48

This Article is brought to you for free and open access by the Department of Public Health at Montclair State University Digital Commons. It has been accepted for inclusion in Department of Public Health Scholarship and Creative Works by an authorized administrator of Montclair State University Digital Commons. For more information, please contact digitalcommons@montclair.edu.

 

https://digitalcommons.montclair.edu/
https://digitalcommons.montclair.edu/
https://digitalcommons.montclair.edu/public-health-facpubs
https://digitalcommons.montclair.edu/public-health-facpubs
https://digitalcommons.montclair.edu/public-health
https://digitalcommons.montclair.edu/public-health-facpubs?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1023?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/406?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1044?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1044?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/410?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1377?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/798?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/798?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1327?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/411?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1412?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1412?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1016?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1125?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/664?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/664?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/738?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
http://network.bepress.com/hgg/discipline/1072?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages
https://digitalcommons.montclair.edu/public-health-facpubs/48?utm_source=digitalcommons.montclair.edu%2Fpublic-health-facpubs%2F48&utm_medium=PDF&utm_campaign=PDFCoverPages

 

Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=wpcw20

Journal of Public Child Welfare

ISSN: 1554-8732 (Print) 1554-8740 (Online) Journal homepage: https://www.tandfonline.com/loi/wpcw20

Pregnant Teens in Foster Care: Concepts, Issues, and Challenges in Conducting Research on Vulnerable Populations

Lisa D. Lieberman, Linda L. Bryant, Keneca Boyce & Patricia Beresford

To cite this article: Lisa D. Lieberman, Linda L. Bryant, Keneca Boyce & Patricia Beresford (2014) Pregnant Teens in Foster Care: Concepts, Issues, and Challenges in Conducting Research on Vulnerable Populations, Journal of Public Child Welfare, 8:2, 143-163, DOI: 10.1080/15548732.2014.895793

To link to this article: https://doi.org/10.1080/15548732.2014.895793

Accepted author version posted online: 28 Feb 2014. Published online: 08 May 2014.

Submit your article to this journal

Article views: 490

View related articles

View Crossmark data

Citing articles: 5 View citing articles

 

https://www.tandfonline.com/action/journalInformation?journalCode=wpcw20
https://www.tandfonline.com/loi/wpcw20
https://www.tandfonline.com/action/showCitFormats?doi=10.1080/15548732.2014.895793
https://doi.org/10.1080/15548732.2014.895793
https://www.tandfonline.com/action/authorSubmission?journalCode=wpcw20&show=instructions
https://www.tandfonline.com/action/authorSubmission?journalCode=wpcw20&show=instructions
https://www.tandfonline.com/doi/mlt/10.1080/15548732.2014.895793
https://www.tandfonline.com/doi/mlt/10.1080/15548732.2014.895793
http://crossmark.crossref.org/dialog/?doi=10.1080/15548732.2014.895793&domain=pdf&date_stamp=2014-02-28
http://crossmark.crossref.org/dialog/?doi=10.1080/15548732.2014.895793&domain=pdf&date_stamp=2014-02-28
https://www.tandfonline.com/doi/citedby/10.1080/15548732.2014.895793#tabModule
https://www.tandfonline.com/doi/citedby/10.1080/15548732.2014.895793#tabModule

 

Journal of Public Child Welfare, Vol. 8:143–163, 2014

Copyright © Taylor & Francis Group, LLC

ISSN: 1554-8732 print/1554-8740 online

DOI: 10.1080/15548732.2014.895793

Pregnant Teens in Foster Care: Concepts, Issues, and Challenges in Conducting Research on Vulnerable Populations

LISA D. LIEBERMAN Montclair State University, Montclair, NJ, USA

LINDA L. BRYANT and KENECA BOYCE Inwood House, New York, NY, USA

PATRICIA BERESFORD New York State Office of Children and Family Services, New York, NY, USA

Teens in foster care give birth at over twice the rate of other teens.

Unique challenges exist for these vulnerable teens and babies, yet

research on such populations, particularly within the systems that

serve them, is limited. A demonstration project at Inwood House, a

residential foster care agency in New York City, from 2000 to 2005,

at the same time that the Administration for Children’s Services

was exploring policy and practice changes for this population, is

described. Research design and implementation issues, descriptive

data, and experiences provide lessons for improving the evidence

base to meet the needs of pregnant teens in care.

KEYWORDS child welfare, organizations/systems, foster care, preg-

nant teens

TEEN PREGNANCY AND BIRTH WITHIN THE

FOSTER CARE SYSTEM

The teen birthrate of 34.3 per 1000 females age 15–19 years is the lowest level ever recorded in the United States (U.S. Centers for Disease Control and Prevention [CDC], 2011; Hamilton, Martin, & Ventura, 2011). Despite

Received: 05/01/13; revised: 02/14/14; accepted: 02/14/14 Address correspondence to Lisa D. Lieberman, Assistant Professor, Department of Health

and Nutrition Sciences, Montclair State University, 1 Normal Avenue, UN4230, Montclair, NJ 07043, USA. E-mail: liebermanl@mail.montclair.edu

143

 

 

144 L. D. Lieberman et al.

this progress, challenges for babies of teen mothers are great—in 2006, the infant mortality rate in New York City (NYC) for babies of teen mothers was 24% higher than the NYC average, and in 2002, only 45% of teen mothers in NYC received prenatal care in their first trimester (Citizens Committee for Children of NYC, 2011; NYC Department of Health and Mental Hygiene, 2002). Although the overall percent of women receiving late or no prenatal care has decreased dramatically over the past decade, late or no prenatal care is higher among teens than all other groups (U.S. Department of Health and Human Services, 2005, 2010). In addition, low birth weight (LBW) among teen mothers is significantly higher than among mothers of all ages (11.7% of births to 15-year-old mothers, 9.5% of births to 19-year-old mothers, and 8.3% all births) (March of Dimes, 2009). In NYC, nearly one in 10 (9.9%) babies born to mothers age 19 years or younger were LBW, compared with 8.4% of babies born to mothers of all ages (NYS Council on Children and Families KWIC, 2012). Furthermore, poverty has long been considered one of the strongest predictors of low birth weight, particularly among teen mothers (Alan Guttmacher Institute, 1994; Reichman, 2005). In short, ‘‘pregnant teens are more likely than older mothers to be poor, undereducated, or to lack access to resources or services—all, in themselves, risk factors for low birth weight’’ (Reichman, 2005, p. 100).

Moving beyond risks among pregnant teens in general, in 2009, more than 400,000 children, from birth through age 17 years, were in foster care in the United States, some 24,605 in New York State and 15,895 in NYC (McKlindon, 2011; NYS Office of Children and Families, 2009). Although child welfare systems have sought to improve lifelong prospects for youth in foster care, a longitudinal study of youth who have left care suggests that their employment, stability, and health outcomes are grim (Sribnick, 2011; Courtney, Dworsky, Lee, & Raap, 2009). After leaving foster care, 2 to 4 years later only 50% are employed, 35% have been homeless, and 33% have no access to health care (Courtney, Dworsky, Lee, & Raap, 2009).

These long-term prospects may be even bleaker for those teens who become parents while in care. It is estimated that 33% of girls in foster care become pregnant by age 17 years and 50% by age 19 years (Sullivan, 2009; Courtney et al., 2005). More teens in foster care give birth than teens who are not in the system, with one study (Pecora et al., 2003) estimating the birth rate for girls in foster care at 17.2%, compared with 8.2% for unmarried teen girls who are not in care. More recent data suggests that, by the time they leave foster care (aging out, emancipation, or returning to their families), nearly 33% of females have given birth to at least one child (Schuyler Center for Analysis and Advocacy, 2009). Furthermore, the range of challenges for girls in foster care, such as mental health issues, past victimization, and substance use increase risks for early pregnancy (Coleman-Cowger, Green, & Clark, 2011). NYC does not aggregate pregnancy or births for foster care youth, thus a comparison with teen birth rates among youth who are not in care,

 

 

Pregnant Teens in Foster Care 145

or demonstration of other risk factors as they relate to pregnancy cannot be determined. Lack of such estimates, even to identify the nature of the target group, pregnant girls in care, demonstrates one major challenge of policy-making for this particularly vulnerable population.

There is an extensive literature on the service needs of pregnant teen- agers, and there are data that reflect the needs and long-term outcomes of teens in foster care. There is little discussion in the literature, however, of the intersection of these two, pregnant teens in care. Recognizing that pregnant teens in foster care may be at greater risk than other pregnant teens, for poorer health, educational and financial outcomes, and/or for placement of their own children in care, this limited knowledge base is particularly critical.

SPECIAL CHALLENGES OF RESEARCH ON PREGNANT

AND PARENTING TEENS IN CARE

When teens are pregnant in care, the system has to provide for their ad- ditional medical and emotional needs and address the increased likelihood of intergenerational placement, specifically that their children will be placed in care (Schuyler Center for Analysis and Advocacy, 2009). Some studies have demonstrated evidence of effectiveness of programs serving vulnerable pregnant populations, such as home visit and parenting programs (Olds, 2006; Olds, Sadler, & Kitzman 2007; Chaffin, 2004) and specialized teen prenatal clinics (Bensussen-Walls & Saewyc, 2001; Gifford, 2001).

However, few have measured these outcomes among teens in fos- ter care. One cross-site evaluation of demonstration programs for pregnant teens that was funded by the U.S. Office of Adolescent Pregnancy Programs (OAPP) included 12 projects and more than 1000 adolescents. The study reported that these interventions resulted in significant improvements in effective contraceptive use, increased use of routine childcare, and short- term delays in repeat pregnancy (Kan et al., 2012). Notably, one project that was part of this funding stream was not even eligible for the cross-site evaluation because the study design could not be met in its residential foster care setting. Determining how to best serve the needs of pregnant teens in care is, thus, particularly hampered by the challenges of conducting research within this complex service delivery system.

These challenges are common to conducting research in other multi- layered systems, including school-based pregnancy prevention programs (Kirby, 2001; Kirby, Laris, & Rolleri, 2007; Key, Gebregziabher, Marsh, & O’Rourke, 2008; Bennett & Assefi, 2005), and public health systems research (Bensussen-Walls & Saewyc, 2001; Gifford, 2001), and have also been iden- tified within child welfare programs (Stuczynski & Kimmich, 2010; Garstka, Collins-Camargo, Hall, Heal, & Ensign, 2012). They may be even more promi- nent in the child welfare system when working with pregnant teens.

 

 

146 L. D. Lieberman et al.

In the absence of sufficient high quality experimental and longitudinal research, practice and policy shifts often are ‘‘based on common sense, matters of fairness and justice, but lack strong evidence’’ (Osgood, Foster, & Courtney, 2010, p. 224) or, they are based on practice wisdom, since so little research is available on child welfare system interventions (Barth, 2008). Further complicating these issues, in a review of foster care in the United States, Bass, Shields, and Behrman (2004), concluded that it is not a cohesive system but a ‘‘combination of many overlapping and interacting agencies, all charged with providing services, financial support, or other assistance to children and their families’’ (p. 5). In such systems, it is difficult to conduct rigorous research that controls for confounding factors and is able to follow clients over a long period of time. Thus, not enough is known about the impact of specific interventions on the well-being of children in foster care. Regarding their transition to adulthood, ‘‘though promising directions for policy and practice are being identified, few interventions have been tested empirically’’ (Osgood et al., 2010, p. 224). A study in the Hawaii child welfare system (Daleiden & Chorpita, 2005) suggested that the system does not rely solely on evidence-based models, in part due to the many challenges of gathering such evidence. This study described policy decisions based on other models, individualized case conceptualization or practice- based evidence, instead. Such approaches can and should provide powerful insights from which systems can learn.