Download or read book Effect of Visual Feedback on Concentric Peak Torque Production During Knee Extension and Flexion Exercise written by Edward R. Gasiewski and published by . This book was released on 1993 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effectiveness of Visual Feedback During Isokinetic Exercise written by Hong J. Kim and published by . This book was released on 1996 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Infrapatellar Braces on Peak Torque Production During Knee Extension and Flexion Exercise written by James P. Couch and published by . This book was released on 1990 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Relative Effectiveness of Three Forms of Visual Knowledge of Results on Maximal Strength Output in an Isokinetic Extension flexion of the Knee written by Susan Laurie Hobbel and published by . This book was released on 1989 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This experiment was conducted to study the effects of three different forms of visual knowledge of results (KR) on maximal strength output in isokinetic exercise. The task used was an isokinetic extension of the knee, followed by a corresponding flexion. Four, six-subject experimental groups completed four testing sessions conducted over a five-day period. Group one represented a no-KR control condition. Group two was provided with visual KR in the form of a continuous torque-output display during treatment sessions. Groups three and four were provided with concurrent and summary torque-time graphs as visual KR, respectively. A pre-test was completed during the first experimental session. Two consecutive testing sessions followed the pre-testing session. After a one-day retention interval, a post-test and a retention test comprised the final session. The dependent measure of maximum peak torque (MPT) was collected at each of two exercise speeds. Pre- and post-test MPT scores were analyzed using a 2 X 4 (pre-/post- X group) analysis of variance (ANOVA) for each exercise speed and movement direction. Day-to-day effects were evaluated using 3 X 4 (day 1 / day 2 / retention day X group) ANOVAs. Group means for factors yielding significant F-scores were compared using Tukey's WSD post-hoc comparisons procedure. The experimental findings indicated that post-test scores increased for all groups, in both movement directions, when compared to pre-test scores. Results also revealed that although the no-KR control group exerted significantly higher mean MPT output during treatment and retention sessions, visual KR presented concurrent with performance led to significant increases in mean MPT output when compared to visual KR presented according to a summary schedule. Four major conclusions resulted from the experimental findings. First, maximal strength output may be achieved in the absence of visual KR. Second, more precise information (such as provided by a concurrent torque-time graph) becomes more effective at low exercise speeds when sufficient time for information processing is available subsequent to the presentation of visual KR. Third, visual KR presented concurrent with performance is a more effective performance and learning variable in isokinetic exercise when compared to visual KR presented according to a summary schedule. Last, visual KR may provide a reference of performance which serves as a limiting criterion in a maximal-effort task.
Download or read book Effects of the Cho Pat Strap on Quadriceps Femoris Peak Torque Output and Perceived Pain in Subjects with Patellofemoral Pain written by Nicole A. Bové and published by . This book was released on 2000 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: PURPOSE: The purpose of the study was to compare the effects of Cho-Pat® strap on perceived pain and quadriceps femoris peak torque output during maximum concentric and eccentric isokinetic knee flexion and extension exercises at varying speeds. SUBJECTS: Six volunteers between the ages of 18-23 years who were students at Springfield College and Longmeadow High School participated in this study. Inclusion criteria: complaints of symptoms consistent with patellofemoral pain for no less than six months, no previous knee surgery or awaiting knee surgery in the future and age 18-25 years. METHODS: Each subject was randomly assigned to either the experimental group (Cho-Pat®) or the control group (non-Cho-Pat®). After completing a warm-up, subjects were positioned on the Cybex® NORM according to the knee protocol outlined in the Cybex® NORM manual. Subjects performed two trials of eccentric and concentric quadriceps femoris contractions. The first trial was completed at a rate of 75 degrees per second, while the second trial was performed at a rate of 120 degrees per second. Thirty seconds after completing testing each subject was asked to rate his/her perceived level of pain using a visual analog scale. Subjects that were assigned to the experimental group were fitted and instructed on the use of the Cho-Pat® strap. Three days later all subjects were re-tested using the same protocol. ANALYSIS: Descriptive statistics were used to compare the pre-test and post-test means of perceived pain and quadriceps femoris peak torque output scores between the experimental group and the control group. RESULTS: In general, both groups displayed an increase in eccentric and concentric quadriceps femoris peak torque output at speeds of 75 and 120 degrees per second, with the exception of the control group at 120 degrees per second, who displayed a decrease in eccentric peak torque output. The experimental group exhibited a greater increase in peak torque output scores compared to the control group between trial one and trial two. Perception of pain scores increased in the control group and decreased in the experimental group. CONCLUSIONS AND RELEVANCE: As a result of limited data available for statistical analysis, the researchers were unable to determine whether the Cho-Pat® strap is an effective or ineffective intervention for increasing strength through the reduction of patellofemoral pain. Therefore, additional research is needed to prove or disprove the efficacy of the Cho-Pat® strap.
Download or read book Generalizability of Isokinetic concentric Measurements of Knee Extension and Flexion Peak Torque Total Work and Average Power written by Jody Carl Andersen and published by . This book was released on 1992 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Knee Flexion and Extension Torque Production on Time to Stabilization in Healthy Women s Soccer and Volleyball Players written by Marie E. Siler and published by . This book was released on 2008 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective: To determine the effects of knee flexion and extension torque productions in the concentric and eccentric manners on the amount of time needed to stabilize following a jump landing task. Design and Setting: Two step-wise regression analysis were performed for time to stabilization in the anterior/posterior (APTTS) and medial/lateral (MLTTS) directions. Also performed wer 6 independent t-tests comparing soccer to volleyball athletes. Significance was set at p
Download or read book Effects of Knee Joint Alignment on Torque Production During Isokinetic Leg Extension and Flexion Exercise written by Dawn M. Scaramuzza and published by . This book was released on 1990 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Goal Setting and Concurrent Visual Feedback on Isokinetic Knee Extension written by Heide L. Jordan and published by . This book was released on 1990 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of a Twelve week Reciprocal Concentric Resistance Training Program on Isokinetic Knee Shoulder and Elbow Peak Torque Production written by Kristinn Irene Heinrichs and published by . This book was released on 1989 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Slow Velocity Isokinetic Knee Actions on Slow and Fast Velocity Contralateral Knee Action Performance written by Colin Arthur Duffett and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue is a complex, multifactorial phenomenon that affects the neuromuscular system from the muscle fibers and neuromuscular junction to the higher planning centers in the brain and reflects interactions along the entire system. 'Neuromuscular fatigue' refers to the decrease in physical performance associated with an increase in the real and/or perceived difficulty of a task, regardless if the force or power can be sustained, and is present and progressing from the onset of the task that is reversible with rest. It consists of central and peripheral components such as decreases in central drive (central fatigue) or contractile responses (peripheral fatigue) and is suggested to occur at any site involved in the muscle contraction. Fatigue also has a mental component that describes an emotion suggested to act as a warning sign for maintaining physical integrity. Neuromuscular fatigue may depend on both the muscles employed and on the type of exercise from which fatigue results and are specific to the task and dependent on the mechanisms which are the most stressed during the task. Fatigue can either be localized or global, meaning it can affect the muscles exercised or the entire body system resulting in fatigue effects in non-exercised muscle groups. A growing body of research revolves around the effects of fatiguing exercise and their impact on the performance of non-exercised muscles, termed non-local muscle fatigue (NLMF). The presence of NLMF effects is conflicting, with effects seemingly dependent on many factors such as contraction intensity, fatiguing exercise volume, muscle group fatigued and tested, muscle action, and the detection method(s) used. NLMF research has many implications for rehabilitation and training purposes, as well as widening our understanding of global fatigue mechanisms. A relatively unexplored aspect of NLMF is whether the testing is velocity specific. The purpose of this study was to investigate the effects of fatigue induced by simultaneous low velocity unilateral isokinetic knee extensions and flexions on contralateral knee slow and fast velocity extensor and flexor isokinetic force and electromyography (EMG). In a randomized, repeated measures, crossover design, peak torque, EMG, and rate of perceived exertion measures were measured from the non-dominant vastus lateralis and biceps femoris before and after unilateral fatiguing protocols of the dominant knee extensors and flexors. The fatiguing protocols consisted of 4 sets of 15 maximal isokinetic knee extension and flexion contractions. In addition, a fatigue resistance test was also completed post-intervention. The current study used 16, university-aged (ages 18-30) participants (10 males and 6 females) who were resistance trained. Peak torque of the dominant (exercised) quadriceps and hamstrings decreased when tested at slow and high velocities. Peak torque of the non-dominant quadriceps and hamstrings during post-test (p=0.6 and p=0.3 respectively), or first or last repetition of repetitive fatigue test (p=0.8, p=0.06, and p=0.8, p=1.0, respectively) tested at slow velocity was not significantly different from control, demonstrating a lack of peak torque or fatigue endurance NLMF effects. In addition, there was no relative (normalized) differences in peak torque for velocity specific or fast test velocities. However, the fast velocity repetitive fatigue test resulted in a greater decrease from first to the last repetition than the slow test, as demonstrated by the fatigue index (FI), but was not significantly different from control. This study highlights that prior unilateral fatigue of the dominant quadriceps and hamstrings by repetitive slow maximal isokinetic actions did not demonstrate decreases in singular maximal peak torque or repetitive fatigue endurance in the contralateral muscles. In addition, velocity specific effects were not demonstrated in relative peak torque or relative fatigue endurance changes. There was also no observable effect on the rating of perceived exertion following control vs fatigue (4.6 vs 6.3, p>0.05), or slow vs. fast testing (5.8 vs 6.8, p>0.05) on post-repetitive test values.
Download or read book Managing Parkinson s Disease With a Multidisciplinary Perspective written by Daniel Martinez-Ramirez and published by Frontiers Media SA. This book was released on 2022-01-13 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Athlete s Shoulder written by James R. Andrews and published by Elsevier Health Sciences. This book was released on 2008-10-30 with total page 897 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest edition of this in-depth look at athletic injuries of the shoulder has been updated to feature 16 new chapters, additional illustrations and algorithms, an added focus on arthroscopic treatments, and pearls that highlight key information. Additional contributing authors give you a fresh spin on new and old topics from rehabilitation exercises to special coverage of female athletes, pediatrics, and golfers. This book offers coverage of arthroscopy, total joint replacement, instability, football, tennis, swimming, and gymnastic injuries, rotator cuff injuries, and much, much more! The large range of topics covered in this text ensures that it’s a great resource for orthopaedists, physical therapists, athletic trainers, and primary care physicians. Presents a multidisciplinary approach to the care of the shoulder, combining contributions from the leaders in the field of orthopedic surgery, physical therapy, and athletic training. Demonstrates which exercises your patients should perform in order to decrease their chance of injury or increase strength following an injury through illustrated exercises for rehabilitation and injury prevention. Illustrates how the shoulder is affected during activity of certain sports with a variety of tables and graphs. Covers a large range of topics including all shoulder injuries to be sufficiently comprehensive for both orthopaedists and physical therapists/athletic trainers. Features 16 new chapters, including Internal Impingement, Bankarts: Open vs. Arthroscopy, Adhesive Capsulitis of the Shoulder, Cervicogenic Shoulder Pain, Proprioception: Testing and Treatment, and more. Details current surgical and rehabilitation information for all aspects of shoulder pathology to keep you up-to-date. Organizes topics into different sections on anatomy, biomechanics, surgery, and rehabilitation for ease of reference.
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 Atlas of Muscle Innervation Zones written by Marco Barbero and published by Springer Science & Business Media. This book was released on 2012-08-04 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive electromyography is a well-established diagnostic tool that has been used for decades by neurologists. Recently, new and alternative devices have increasingly become available that permit diagnosis without the use of needles. This developing area of science and the new tools have not, however, been sufficiently investigated in academic training. Consequently a gap exists between what science is making possible and the competence acquired during graduate studies. This handy volume has the aim of filling this gap by providing the information required by medical practitioners in rehabilitation, sports, and occupational health as well as by rehabilitation therapists, ergonomists, and sport coaches. The techniques that are presented and explained will help in monitoring and recording changes, evaluating the effectiveness of treatments and training, evaluating work stations, and preventing and documenting the evolution of occupational disorders of the neuromuscular system.
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 Shoulder and Elbow Injuries in Athletes written by Robert A. Arciero and published by Elsevier Health Sciences. This book was released on 2017-10-17 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorough and concise, this practical reference provides a unique, on-field management approach to all athletic injuries to the shoulder and elbow, as well as nonoperative and operative treatment options, including arthroscopy and open surgery. Focusing on high-performance athletes, leading authorities in the field demonstrate how to provide pain relief, restore function, and return the athlete to sport and to prior level of performance in a safe and timely fashion. Showcases the knowledge and expertise of an international group of editors and authors who have served as president of the American Orthopaedic Society for Sports Medicine, the American Shoulder and Elbow Surgeons and the Arthroscopy Association of North America, are physicians or consultants for professional and collegiate sports teams, have won awards for research in the field of shoulder surgery, are editors and reviewers for peer-reviewed journals, and much more. Contains rehabilitation guidelines and critical return-to-sport protocols – essential information for nonsurgical healthcare providers -- primarily on athletes under the age of 40, with some consideration of the older athlete (professional golf, for example). Contains a section in each chapter covering "On-the-Field Management and Early Post-Injury Assessment and Treatment" – a must-read for immediate care of the injured athlete and ensuring the safe return to play. Covers the most recent advances in the management of tendon tears in elite and overhead athletes, including prevention in youth sports, early sports specialization, and changing standards of care regarding shoulder and elbow instability. Provides a thorough review of current ulnar collateral ligament injury diagnosis, imaging, non-operative management, and surgery, as well as acromioclavicular and sternoclavicular joint injuries, clavicle and olecranon fractures, and OCD of the capitellum.
