Download or read book The Development of a Personalized Curved Muscle Model Applicable to Complex Dynamic Exertion written by Jaejin Hwang and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate estimates of trunk muscle geometry including the muscle line of action are essential to the development of biologically-assisted models capable of accurately documenting spinal tissue loads. Currently most biomechanical models of the spine employ straight-line muscle approximations for computational efficiency. However, this straight line of action assumption is thought to violate the physiological reality of the lumbar spine and would provide a wrong estimate of spine tissue loading especially during asymmetric complex exertions. The incorporation of muscle curvature within the biomechanical model has been suggested as a means to more accurately predict spine tissue loads. However, the approach to defining the curved geometry and line of action of the muscle for modeling purposes and the logic associated with integrating this information into current biologically-assisted models have not yet been addressed. Hence, the objective of this study was to develop personalized curved muscle geometry and integrate this information into a biologically-assisted spine model using an individual’s anthropometric measures, trunk kinematics, kinetics, and muscle activities. Four major steps were conducted to meet this goal. First, a systematic literature review was performed and 35 studies met the selection criteria. The most common technique of curved muscle path was the “via-point” method. Curved muscle geometry was commonly developed from MRI/CT database and cadaveric dissections, and inverse dynamics models were typically used to estimate muscle forces. Several models have attempted to examine their results by comparing their approach with previous studies, however, only limited conditions were able to be examined. Second, based on magnetic resonance imaging data from thirty subjects (10 male and 20 female) reported in a previous study, a polynomial regression analysis was conducted to estimate the muscle moment-arms and physiological cross-sectional areas through thoracic/lumbar spine as a function of vertebral level, gender, age, height, and body mass. Third, the model structure was developed to include curved muscle geometry, separation of active and passive muscle forces, and personalization of muscle properties. Lastly, model fidelity of the curved muscle model through the entire lumbar spine was evaluated for 24 subjects (13 males and 11 females) during a wide range of complex dynamic lifting exertions. In general, curved muscle model predicted at least 80% of the variability in spinal moments, and less than 15% of average moment matching error across levels. The compression and anterior-posterior shear load significantly increased as trunk bent more, whereas the lateral shear load significantly increased as trunk twisted more asymmetric during lifting tasks. The results of this study indicate that a curved muscle representation in the biologically-assisted model is an empirically reasonable approach to accurately estimate spinal moments and spinal tissue loads of the lumbar spine. This advancement is expected to help quantify risk exposure more accurately, improve patient health and enable the development of interventions that could mitigate risks in occupational jobs.
Download or read book Educating the Student Body written by Committee on Physical Activity and Physical Education in the School Environment and published by National Academies Press. This book was released on 2013-11-13 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical inactivity is a key determinant of health across the lifespan. A lack of activity increases the risk of heart disease, colon and breast cancer, diabetes mellitus, hypertension, osteoporosis, anxiety and depression and others diseases. Emerging literature has suggested that in terms of mortality, the global population health burden of physical inactivity approaches that of cigarette smoking. The prevalence and substantial disease risk associated with physical inactivity has been described as a pandemic. The prevalence, health impact, and evidence of changeability all have resulted in calls for action to increase physical activity across the lifespan. In response to the need to find ways to make physical activity a health priority for youth, the Institute of Medicine's Committee on Physical Activity and Physical Education in the School Environment was formed. Its purpose was to review the current status of physical activity and physical education in the school environment, including before, during, and after school, and examine the influences of physical activity and physical education on the short and long term physical, cognitive and brain, and psychosocial health and development of children and adolescents. Educating the Student Body makes recommendations about approaches for strengthening and improving programs and policies for physical activity and physical education in the school environment. This report lays out a set of guiding principles to guide its work on these tasks. These included: recognizing the benefits of instilling life-long physical activity habits in children; the value of using systems thinking in improving physical activity and physical education in the school environment; the recognition of current disparities in opportunities and the need to achieve equity in physical activity and physical education; the importance of considering all types of school environments; the need to take into consideration the diversity of students as recommendations are developed. This report will be of interest to local and national policymakers, school officials, teachers, and the education community, researchers, professional organizations, and parents interested in physical activity, physical education, and health for school-aged children and adolescents.
Download or read book Laboratory Manual for Exercise Physiology written by G. Gregory Haff and published by Human Kinetics. This book was released on 2021-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory Manual for Exercise Physiology, Second Edition With HKPropel Access, provides guided opportunities for students to translate their scientific understanding of exercise physiology into practical applications in a variety of settings. Written by experts G. Gregory Haff and Charles Dumke, the text builds upon the success of the first edition with full-color images and the addition of several new online interactive lab activities . The revitalized second edition comprises 16 laboratory chapters that offer a total of 49 lab activities. Each laboratory chapter provides a complete lesson, including objectives, definitions of key terms, and background information that sets the stage for learning. Each lab activity supplies step-by-step procedures, providing guidance for those new to lab settings so that they may complete the procedures. New features and updates in this edition include the following: Related online learning tools delivered through HKPropel that contain 10 interactive lab activities with video to enhance student learning and simulate the experience of performing the labs in the real world A completely new laboratory chapter on high-intensity fitness training that includes several popular intermittent fitness tests that students can learn to perform and interpret An appendix that helps estimate the oxygen cost of walking, running, and cycling New research and information pertaining to each laboratory topic A lab activity finder that makes it easy to locate specific tests In addition to the interactive lab activities, which are assignable and trackable by instructors, HKPropel also offers students electronic versions of individual and group data sheets of standards and norms, question sets to help students better understand laboratory concepts, and case studies with answers to further facilitate real-world application. Chapter quizzes (assessments) that are automatically graded may also be assigned by instructors to test comprehension of critical concepts. Organized in a logical progression, the text builds upon the knowledge students acquire as they advance. Furthermore, the text provides multiple lab activities and includes an equipment list at the beginning of each activity, allowing instructors flexibility in choosing the lab activities that will best work in their facility. Laboratory Manual for Exercise Physiology, Second Edition With HKPropel Access, exposes students to a broad expanse of tests that are typically performed in an exercise physiology lab and that can be applied to a variety of professional settings. As such, the text serves as a high-quality resource for basic laboratory testing procedures used in assessing human performance, health, and wellness. Note: A code for accessing HKPropel is not included with this ebook but may be purchased separately.
Download or read book Biomedical Index to PHS supported Research pt A Subject access A H written by and published by . This book was released on 1992 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Stretch shortening Cycle of Active Muscle and Muscle tendon Complex What Why and How It Increases Muscle Performance written by Wolfgang Seiberl and published by Frontiers Media SA. This book was released on 2021-07-09 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science Theory and Clinical Application in Orthopaedic Manual Physical Therapy Applied Science and Theory written by Ola Grimsby and published by Lulu.com. This book was released on 2008-09-16 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long awaited textbook from The Ola Grimsby Institute provides decades of clinical experience and reasoning, with both historical and current evidence, with rationale for both passive and active treatments in orthopaedic manual therapy. Practical guidelines for joint mobilization and exercise rehabilitation are presented with this logical and exciting work. Incorporating experience and science, this book provides new approaches and treatment principles to make what you already do more effective. Extensive Content: Over 535 pages and 275 illustrations, photographs and tables Ola Grimsby and his co-authors have compiled a significant resource for the practicing physical therapist, manual therapist or osteopath.
Download or read book Fatigue written by Patricia A. Pierce and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the current state of our knowledge on the neurobiology of muscle fatigue, with consideration also given to selected integrative cardiorespiratory mechanisms. Our charge to the authors of the various chapters was twofold: to provide a systematic review of the topic that could serve as a balanced reference text for practicing health-care professionals, teaching faculty, and pre-and postdoctoral trainees in the biomedi cal sciences; and to stimulate further experimental and theoretical work on neurobiology. Key issues are addressed in nine interrelated areas: fatigue of single muscle fibers, fatigue at the neuromuscular junction, fatigue of single motor units, metabolic fatigue studied with nuclear magnetic resonance, fatigue of the segmental motor system, fatigue involving suprasegmental mechanisms, the task dependency of fatigue mechanisms, integrative (largely cardiorespiratory) systems issues, and fatigue of adapted systems (due to aging, under-and overuse, and pathophysiology). The product is a volume that provides compre of processes that operate from the forebrain to the contractile proteins.
Download or read book Oxford Textbook of Musculoskeletal Medicine written by Michael Hutson and published by Oxford University Press. This book was released on 2016 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: This all-in-one companion to the field of musculoskeletal medicine describes basic concepts and offers practical guidelines for diagnosis and treatment, and contains models of care which assist understanding of basic concepts.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Universal Cyclopaedia written by and published by . This book was released on 1900 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Athlete Development written by Istvan Balyi and published by Human Kinetics Publishers. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-Term Athlete Development offers an in-depth explanation of the long-term athlete development model, an approach to athlete-centered sport that combines skill instruction with long-term planning and an understanding of human development to produce athlete growth.
Download or read book Fundamentals of Biomechanics written by Duane Knudson and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Biomechanics introduces the exciting world of how human movement is created and how it can be improved. Teachers, coaches and physical therapists all use biomechanics to help people improve movement and decrease the risk of injury. The book presents a comprehensive review of the major concepts of biomechanics and summarizes them in nine principles of biomechanics. Fundamentals of Biomechanics concludes by showing how these principles can be used by movement professionals to improve human movement. Specific case studies are presented in physical education, coaching, strength and conditioning, and sports medicine.
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2005 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Popular Science written by and published by . This book was released on 2004-09 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Download or read book Occupational Therapy Practice Framework Domain and Process written by Aota and published by AOTA Press. This book was released on 2014 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: As occupational therapy celebrates its centennial in 2017, attention returns to the profession's founding belief in the value of therapeutic occupations as a way to remediate illness and maintain health. The founders emphasized the importance of establishing a therapeutic relationship with each client and designing an intervention plan based on the knowledge about a client's context and environment, values, goals, and needs. Using today's lexicon, the profession's founders proposed a vision for the profession that was occupation based, client centered, and evidence based--the vision articulated in the third edition of the Occupational Therapy Practice Framework: Domain and Process. The Framework is a must-have official document from the American Occupational Therapy Association. Intended for occupational therapy practitioners and students, other health care professionals, educators, researchers, payers, and consumers, the Framework summarizes the interrelated constructs that describe occupational therapy practice. In addition to the creation of a new preface to set the tone for the work, this new edition includes the following highlights: a redefinition of the overarching statement describing occupational therapy's domain; a new definition of clients that includes persons, groups, and populations; further delineation of the profession's relationship to organizations; inclusion of activity demands as part of the process; and even more up-to-date analysis and guidance for today's occupational therapy practitioners. Achieving health, well-being, and participation in life through engagement in occupation is the overarching statement that describes the domain and process of occupational therapy in the fullest sense. The Framework can provide the structure and guidance that practitioners can use to meet this important goal.
Download or read book Biomechanics in Sport Performance Enhancement and Injury Prevention written by Vladimir Zatsiorsky and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomechanics in Sport is a unique reference text prepared by the leading world experts in sport biomechanics. Over thirty chapters cover a broad spectrum of topics, ranging from muscle mechanics to injury prevention, and from aerial movement to wheelchair sport. The biomechanics of sports including running, skating, skiing, swimming, jumping in athletics, figure skating, ski jumping, diving, javelin and hammer throwing, shot putting, and striking movements are all explained.
Download or read book Science and Practice of Strength Training written by Vladimir M. Zatsiorsky and published by Human Kinetics Publishers. This book was released on 2020-04-09 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Practice of Strength Training addresses the complexity of strength training programs while providing advice in customizing programs for athletes and other populations. It covers velocity training, intensity, timing, exercises, injury prevention, overtraining, and athlete monitoring.
