Relations Between Neck Muscle Activity and Three Dimensional Head Kinematics During Natural Head Tracking Movements PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Relations Between Neck Muscle Activity and Three Dimensional Head Kinematics During Natural Head Tracking Movements PDF full book. Access full book title Relations Between Neck Muscle Activity and Three Dimensional Head Kinematics During Natural Head Tracking Movements by Joseph David Peles. Download full books in PDF and EPUB format.
Author: Joseph David Peles
Publisher:
ISBN:
Category : Head
Languages : en
Pages : 462
Get Book Here
Book Description
Author: Joseph David Peles
Publisher:
ISBN:
Category : Head
Languages : en
Pages : 462
Get Book Here
Book Description
Author: Laura Healey
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
The addition of head supported mass, specifically night vision goggles (NVGs), is widely accepted as a key contributor to neck trouble among armed forces rotary wing pilots (Harrison et al., 2009). In fact, nearly 80% of rotary wing pilots in Canada report neck pain (Chafe & Farrell, 2016). However, speculation remains about the pathway by which added head supported mass may link to underlying injury pathways. The objective of this study was to probe how mass, moment of inertia, and range of motion changes associated with NVG use interdependently affect neck muscle activity. Specific research questions probed how range of motion, mass, and moment of inertia would affect co-contraction, integrated EMG, mean EMG, and peak EMG. The overarching aim of this work was to inform design specifications for an optimized helmet, that specifically considers the helmets use as a head supported mass mounting platform. Thirty participants performed a rapid, reciprocal scanning task, akin to a scanning task performed by pilots. Participants donned four different operationally relevant head supported mass conditions: (1) helmet only (hOnly), (2) helmet, NVGs and a battery pack (hNVG), (3) helmet, NVGs, battery pack, and traditional lead counterweight (hCW), (4) helmet, NVGs, battery pack, and a lead counterweight fitted inside the posterior of the helmet (hCWL). A laser pointer was attached to the NVGs directly in line with participant's field of view allowing them to acquire solar panel targets set up in yaw (left and right) and pitch (up and down) trajectories in both near (35o arc) and far (70o arc) amplitudes. They were asked to acquire as many targets as possible in twenty seconds in both the yaw and pitch trajectories, in each of the helmet and amplitude conditions. Electromyography (EMG) was collected bilaterally on the sternocleidomastoid, upper neck extensors and upper trapezius. However, after processing only the sternocleidomastoid and upper neck extensors were analyzed. Kinematics were collected to determine the head-trunk velocity, and solar panel data were recorded to determine performance measures such as time to acquire target, and number of targets acquired. Results showed that HSM condition had a small, but significant effect on co-contraction in the yaw trajectory, where counterweighted conditions (hCW and hCWL) required significantly higher co-contraction than non-counterweighted conditions (hOnly and hNVG). Further, target amplitude had a main effect on integrated EMG and mean EMG, as well as peak EMG and co-contraction. Interestingly, target amplitude also had a significant main effect on mean velocity, where mean velocity was significantly higher at far amplitudes. Increased angular velocity may explain differences in EMG caused by target amplitude. Finally, helmet moment of inertia did not have a main effect on peak EMG. Overall, the results from this study suggest that increased range of motion may be one of the most detrimental effects caused by NVGs. Long term it is suggested designers consider increasing the field of view of NVGs to reduce the range of motion required to perform a scanning task. Alternatively, designers can implement cockpit design changes that reduce the need to move through a wide range of motion. For current helmet designers looking to make immediate changes it is suggested that mass be decreased to limit neck muscle co-contraction requirements.
Author: Ola Grimsby
Publisher: Lulu.com
ISBN: 0615257690
Category : Science
Languages : en
Pages : 350
Get Book Here
Book Description
This long awaited textbook, and its companion texts, from The Ola Grimsby Institute provide decades of clinical experience and reasoning, with both historical and current evidence, with rationale for active treatments in orthopaedic manual therapy. Practical guidelines for 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 332 pages and 455 illustrations, photographs and tables Ola Grimsby and his co-authors have compiled a significant resource for the practicing physical therapist and manual therapist. Ideal for both the classroom and clinic.
Author: Alison Middleditch
Publisher: Elsevier Health Sciences
ISBN: 0750627174
Category : Medical
Languages : en
Pages : 370
Get Book Here
Book Description
This book provides the solid foundation of knowledge therapists need to safely and accurately treat musculoskeletal disorders of the spine. It presents a comprehensive view of applied functional anatomy and biomechanics of the whole spine, examining normal and abnormal function of the spine, the response of tissues to injury, and the effects of age-related changes. Thoroughly referenced and extensively illustrated with over 200 original, high-quality diagrams, it serves as an excellent resource for clinical decision making. The 2nd edition explores several areas in greater depth - including the sacroiliac joint, thoracic biomechanics, muscles - and reviews recent papers and the scientific evidence of functional anatomy. Accessory and physiological spinal movements are thoroughly described. Palpation is covered in detail. Numerous guidelines for safe practice are provided. A valuable, comprehensive chapter covers posture, lifting, and the prevention of injury. Coverage of applied anatomy and biomechanics is written by therapists for therapists. New theories on thoracic biomechanics are presented, rarely covered by other anatomy books. All topics have been updated to reflect recent scientific evidence, enabling the reader to more effectively formulate and manage treatment plans. New illustrations to complement the text and improve readers' understanding of the material. A one-of-a-kind chapter covering the sacroiliac joint has been comprehensively revised. Expanded material is provided on the autonomic nervous system, thoracic spine biomechanics, and the biomechanics of the lower limb as it relates to the spine. New sections address adverse neural tension, cervical discs, proprioception and muscle imbalance, and mechanics of the jaw and upper cervical spine. An update on vertebral artery and blood supply presents the latest knowledge on the subject.
Author:
Publisher: Academic Press
ISBN: 0128054093
Category : Medical
Languages : en
Pages : 5215
Get Book Here
Book Description
The Senses: A Comprehensive Reference, Second Edition, Seven Volume Set is a comprehensive reference work covering the range of topics that constitute current knowledge of the neural mechanisms underlying the different senses. This important work provides the most up-to-date, cutting-edge, comprehensive reference combining volumes on all major sensory modalities in one set. Offering 264 chapters from a distinguished team of international experts, The Senses lays out current knowledge on the anatomy, physiology, and molecular biology of sensory organs, in a collection of comprehensive chapters spanning 4 volumes. Topics covered include the perception, psychophysics, and higher order processing of sensory information, as well as disorders and new diagnostic and treatment methods. Written for a wide audience, this reference work provides students, scholars, medical doctors, as well as anyone interested in neuroscience, a comprehensive overview of the knowledge accumulated on the function of sense organs, sensory systems, and how the brain processes sensory input. As with the first edition, contributions from leading scholars from around the world will ensure The Senses offers a truly international portrait of sensory physiology. The set is the definitive reference on sensory neuroscience and provides the ultimate entry point into the review and original literature in Sensory Neuroscience enabling students and scientists to delve into the subject and deepen their knowledge. All-inclusive coverage of topics: updated edition offers readers the only current reference available covering neurobiology, physiology, anatomy, and molecular biology of sense organs and the processing of sensory information in the brain Authoritative content: world-leading contributors provide readers with a reputable, dynamic and authoritative account of the topics under discussion Comprehensive-style content: in-depth, complex coverage of topics offers students at upper undergraduate level and above full insight into topics under discussion
Author: Charles E Giangarra
Publisher: Elsevier Health Sciences
ISBN: 0323477895
Category : Medical
Languages : en
Pages : 732
Get Book Here
Book Description
Evidence suggests a direct correlation between the quality of postoperative orthopaedic rehabilitation and the effectiveness of the surgery. Clinical Orthopaedic Rehabilitation, 4th Edition, helps today's orthopaedic teams apply the most effective, evidence-based protocols for maximizing return to function following common sports injuries and post-surgical conditions. Charles Giangarra, MD and Robert Manske, PT continue the commitment to excellence established by Dr. S. Brent Brotzman in previous editions, bringing a fresh perspective to the team approach to rehabilitation. - Every section is written by a combination of surgeons, physical therapists, and occupational therapists, making this respected text a truly practical "how-to" guide for the appropriate initial exam, differential diagnosis, treatment, and rehabilitation. - Treatment and rehabilitation protocols are presented in a step-by-step, algorithmic format with each new phase begun after criteria are met (criteria-based progression, reflecting current best practice). - Revised content brings you up to date with new evidence-based literature on examination techniques, classification systems, differential diagnosis, treatment options, and criteria-based rehabilitation protocols. - Extensive updates throughout include new chapters on: medial patellofemoral ligament, shoulder impingement, pec major ruptures, thoracic outlet syndrome, general humeral fractures, foot and ankle fractures, medial patellofemoral ligament reconstruction, the arthritic hip, athletic pubalgia, and labral repair and reconstruction. - Easy-to-follow videos demonstrate rehabilitation procedures of frequently seen orthopaedic conditions and commonly used exercises, and new full-color images complement the highly visual nature of the text.
Author: Curtis W. Slipman
Publisher: Elsevier Health Sciences
ISBN: 1437721664
Category : Medical
Languages : en
Pages : 1477
Get Book Here
Book Description
As many as 80% of patients will suffer from back pain at some point in their lifetime. It is the most common form of disability, and the second largest cause of work absenteeism. An early, proactive management approach offers the best route to minimizing these conditions. Renowned authority Curtis W. Slipman, MD and a team of multidisciplinary authorities present you with expert guidance on today's best non-surgical management methods, equipping you with the knowledge you need to offer your patients optimal pain relief. Refresh your knowledge of the basic principles that must be understood before patients with spinal pain can be properly treated. Know what to do when first-line tests and therapies fail, using practice-proven diagnostic and therapeutic algorithms. Offer your patients a full range of non-surgical treatment options, including pharmacology, physical therapy, injection techniques, ablative procedures, and percutaneous disc decompression. Make an informed surgical referral with guidance on indications, contraindications, methods, and postoperative rehabilitation. Better understand key techniques and procedures with visual guidance from more than 500 detailed illustrations.
Author: Gwendolen Jull
Publisher: Elsevier Health Sciences
ISBN: 0702032980
Category : Medical
Languages : en
Pages : 257
Get Book Here
Book Description
A textbook and practical clinical handbook for all students and practitioners concerned with the evaluation, diagnosis, assessment and management of neck pain and cervical headache particularly in relation to whiplash. It is likely to become essential study for final year physiotherapy and chiropractic students, for all manipulative physiotherapy MSc students and a widely used clinical ref text for all involved in the assessment and management of whiplash and related neck and head pain.This book presents the applied sciences, clinical assessment methods and rehabilitation protocols for the management of persons with neck pain.The material presented in this book represents the translation of research into clinical practice and provides a systematic approach to assessment and an evidence base for conservative clinical management strategies for neck pain.Unique topics in this book include:•Provides an understanding of the pathophysiological processes in the sensory, motor and sensorimotor systems and how they present in patients with neck pain disorders. •Presents multimodal approaches to management of neck pain guided by the evidence of presenting dysfunctions•Presents a comprehensive description of a therapeutic exercise approach based on motor control which has proven efficacy.
Author: Jack M. Winters
Publisher: Springer Science & Business Media
ISBN: 1461390303
Category : Science
Languages : en
Pages : 818
Get Book Here
Book Description
The picture on the front cover of this book depicts a young man pulling a fishnet, a task of practical relevance for many centuries. It is a complex task, involving load transmission throughout the body, intricate balance, and eye head-hand coordination. The quest toward understanding how we perform such tasks with skill and grace, often in the presence of unpredictable pertur bations, has a long history. However, despite a history of magnificent sculptures and drawings of the human body which vividly depict muscle ac tivity and interaction, until more recent times our state of knowledge of human movement was rather primitive. During the past century this has changed; we now have developed a considerable database regarding the com position and basic properties of muscle and nerve tissue and the basic causal relations between neural function and biomechanical movement. Over the last few decades we have also seen an increased appreciation of the impor tance of musculoskeletal biomechanics: the neuromotor system must control movement within a world governed by mechanical laws. We have now col lected quantitative data for a wealth of human movements. Our capacity to understand the data we collect has been enhanced by our continually evolving modeling capabilities and by the availability of computational power. What have we learned? This book is designed to help synthesize our current knowledge regarding the role of muscles in human movement. The study of human movement is not a mature discipline.
Author: Klaus Gramann
Publisher: Frontiers E-books
ISBN: 2889192717
Category : Neurosciences. Biological psychiatry. Neuropsychiatry
Languages : en
Pages : 167
Get Book Here
Book Description
Decades of brain imaging experiments have revealed important insights into the architecture of the human brain and the detailed anatomic basis for the neural dynamics supporting human cognition. However, technical restrictions of traditional brain imaging approaches including functional magnetic resonance tomography (fMRI), positron emission tomography (PET), and magnetoencephalography (MEG) severely limit participants’ movements during experiments. As a consequence, our knowledge of the neural basis of human cognition is rooted in a dissociation of human cognition from what is arguably its foremost, and certainly its evolutionarily most determinant function, organizing our behavior so as to optimize its consequences in our complex, multi-scale, and ever-changing environment. The concept of natural cognition, therefore, should not be separated from our fundamental experience and role as embodied agents acting in a complex, partly unpredictable world. To gain new insights into the brain dynamics supporting natural cognition, we must overcome restrictions of traditional brain imaging technology. First, the sensors used must be lightweight and mobile to allow monitoring of brain activity during free participant movements. New hardware technology for electroencephalography (EEG) and near infrared spectroscopy (NIRS) allows recording electrical and hemodynamic brain activity while participants are freely moving. New data-driven analysis approaches must allow separation of signals arriving at the sensors from the brain and from non-brain sources (neck muscles, eyes, heart, the electrical environment, etc.). Independent component analysis (ICA) and related blind source separation methods allow separation of brain activity from non-brain activity from data recorded during experimental paradigms that stimulate natural cognition. Imaging the precisely timed, distributed brain dynamics that support all forms of our motivated actions and interactions in both laboratory and real-world settings requires new modes of data capture and of data processing. Synchronously recording participants’ motor behavior, brain activity, and other physiology, as well as their physical environment and external events may be termed mobile brain/body imaging ('MoBI'). Joint multi-stream analysis of recorded MoBI data is a major conceptual, mathematical, and data processing challenge. This Research Topic is one result of the first international MoBI meeting in Delmenhorst Germany in September 2013. During an intense workshop researchers from all over the world presented their projects and discussed new technological developments and challenges of this new imaging approach. Several of the presentations are compiled in this Research Topic that we hope may inspire new research using the MoBI paradigm to investigate natural cognition by recording and analyzing the brain dynamics and behavior of participants performing a wide range of naturally motivated actions and interactions.
