Download or read book An Investigation of Factors that Influence Quality of Movement Among Young Athletes Following Anterior Cruciate Ligament Reconstruction written by Christin M. Zwolski and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anterior cruciate ligament (ACL) rupture of the knee is a devastating musculoskeletal injury that plagues young athletes who participate in cutting/pivoting sports. The typical treatment approach for this injury is ACL reconstruction (ACLR), a procedure that aims to restore knee stability and function. Following ACLR, young athletes in particular demonstrate strength deficits, altered biomechanics, and decreased self-reported function. Also characteristic of this population is an increased risk of second ACL injury, difficulty maintaining previous level of physical activity participation, and development of premature knee osteoarthritis. Within current rehabilitation practice after ACLR, the index of return to sport (RTS) readiness is the achievement of physical competence criteria, such as strength, functional performance, and patient-reported outcome measures of symptoms and function. However, the poor outcomes experienced by young athletes after ACLR provide clear reasoning that this approach needs to be expanded to include factors beyond the physical domain. This dissertation addresses this need by employing a novel convergence of theories and constructs to investigate the holistic impact of ACLR on a young athlete’s quality of movement. The goal of this dissertation work was to identify underlying factors associated with quality of movement following ACLR among young athletes. The overall objectives of this dissertation were to determine how actual and perceived physical competence are associated with psychological function (Chapter 2) and biomechanics (Chapter 3) among young athletes at the time of RTS following ACLR. Secondly, we sought to understand the factors perceived to influence physical literacy and physical activity in the years following RTS after ACLR (Chapter 4). The results of this work identified an association between perceived physical competence and psychological readiness to RTS. Neither actual nor perceived physical competence were associated with landing biomechanics at time of RTS. Additionally, factors perceived to influence physical literacy in the years following adolescent ACLR were identified across all socioecological levels. Themes generated from these factors included 1) navigation of barriers, 2) movement motives, 3) movement mindset, and 4) physical literacy recalibration. Collectively, the findings from these studies serve as an important foundation for the advancement of post-ACLR rehabilitation interventions and guidelines that promote meaningful and quality movement throughout the lifespan. To our knowledge, the series of studies included in this dissertation represent the first to comprehensively examine factors within the domains of the physical literacy construct as they relate to youth who have suffered a severe, sports-related injury.
Download or read book Professional Practice in Sport Psychology written by Sheldon Hanton and published by Routledge. This book was released on 2012-03-12 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sport psychologists working with athletes, teams and sports performers are only as effective as their professional techniques and competencies will allow. This is the first book to offer a detailed and critical appraisal of the conceptual foundations of contemporary professional practice in sport psychology. The book presents a series of reviews of the most up-to-date academic and professional literature on professional practice, exploring issues that all psychologists face when working with clients in sport and offers important evidence-based recommendations for best practice. Key topics covered include: models of practice and service delivery counselling and clinical intervention working with teams working with young performers providing life skills training managing career transitions working with special populations enhancing coach-athlete relations. With contributions from leading sport psychology consultants in the UK, the US, Canada, Australia and continental Europe, this is a comprehensive and thought-provoking resource that bridges the gap between research and application. It is vital reading for all advanced students, researchers and professionals working in sport psychology.
Download or read book One Anterior Cruciate Ligament injury is enough written by Anne Fältström and published by Linköping University Electronic Press. This book was released on 2016-08-31 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Anterior cruciate ligament (ACL) injury is a severe and common injury, and females have 2-4 times higher injury risk compared to men. Return to sport (RTS) is a common goal after an ACL reconstruction (ACLR), but only about two thirds of patients RTS. Young patients who RTS may have a 30-40 times increased risk of sustaining an additional ACL injury to the ipsi- or contralateral knee compared with an uninjured person. Aims: The overall aim of this thesis was to increase the knowledge about female football players with ACLR, and patients with bilateral ACL injuries, and to identify predictors for additional ipsi- and/or contralateral ACLR. Methods: This thesis comprises four studies. Study I and II were cross-sectional, including females who sustained a primary ACL rupture while playing football and underwent ACLR 6–36 months prior to study inclusion. In study I, 182 females were included at a median of 18 months (IQR 13) after ACLR. All players completed a battery of questionnaires. Ninety-four players (52%) returned to football and were playing at the time of completing the questionnaires, and 88 (48%) had not returned. In study II, 77 of the 94 active female football players (from study I) with an ACLR and 77 kneehealthy female football players were included. A battery of tests was used to assess postural control (the Star excursion balance test) and hop performance (the one-leg hop for distance, the five jump test and the side hop). Movement asymmetries in the lower limbs and trunk were assessed with the drop vertical jump and the tuck jump using two-dimensional analyses. Study III, was a cohort study including all patients with a primary ACLR (n=22,429) registered in the Swedish national ACL register between January 2005 and February 2013. Data extracted from the register to identify predictors for additional ACLR were: patient age at primary ACLR, sex, activity performed at the time of ACL injury, primary injury to the right- or left knee, time between injury and primary ACLR, presence of any concomitant injuries, graft type, Knee injury and Osteoarthritis Outcome Score and Euroqol Index Five Dimensions measured pre-operatively. Study IV was cross-sectional. In this study, patient-reported knee function, quality of life and activity level in 66 patients with bilateral ACL injuries was investigated and outcomes were compared with 182 patients with unilateral ACLR. Results: Factors associated with returning to football in females were; short time between injury and ACLR (0–3 months, OR 5.6; 3–12 months OR 4.7 vs. reference group >12 months) and high motivation (study I). In all functional tests, the reconstructed and uninvolved limbs did not differ, and players with ACLR and controls differed only minimally. Nine to 49% of the players with ACLR and controls had side-to-side differences and movement asymmetries and only one fifth had results that met the recommended guidelines for successful outcome on all the different tests (study II). Main predictors for revision and contralateral ACLR were younger age (fourfold increased rate for <16 vs. >35-year-old patients), having ACLR early after the primary injury (two to threefold increased rate for ACLR within 3 months vs. >12 months), and incurring the primary injury while playing football (study III). Patients with bilateral ACL injuries reported poorer knee function and quality of life compared to those who had undergone unilateral ACLR. They had a high activity level before their first and second ACL injuries but an impaired activity level at follow-up after their second injury (study IV). Conclusions: Female football players who returned to football after an ACLR had high motivation and had undergone ACLR within one year after injury. Players with ACLR had similar functional performance to healthy controls. Movement asymmetries, which in previous studies have been associated with increased risk for primary and secondary ACL injury, occurred to a high degree in both groups. The rate of additional ACLR seemed to be increased in a selected group of young patients who desire to return to strenuous sports like football quickly after primary ACLR. Sustaining a contralateral ACL injury led to impaired knee function and activity level.
Download or read book Return to Sport after ACL Reconstruction and Other Knee Operations written by Frank R. Noyes and published by Springer Nature. This book was released on 2019-11-05 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wealth of information provided in this unique text will enable orthopedic surgeons, medical practitioners, physical therapists, and trainers to ensure that athletes who suffer anterior cruciate ligament (ACL) injuries, or who require major knee operations for other reasons, have the best possible chance of safely resuming sporting activity at their desired level without subsequent problems. Divided into seven thematic sections, the coverage is wide-ranging and encompasses common barriers to return to sport, return to sport decision-based models, and the complete spectrum of optimal treatment for ACL injuries, including preoperative and postoperative rehabilitation. Advanced training concepts are explained in detail, with description of sports-specific programs for soccer, basketball, and tennis. Readers will find detailed guidance on objective testing for muscle strength, neuromuscular function, neurocognitive function, and cardiovascular fitness, as well as validated assessments to identify and manage psychological issues. In addition, return to sport considerations after meniscus surgery, patellofemoral realignment, articular cartilage procedures, and knee arthroplasty are discussed. Generously illustrated and heavily referenced, Return to Sport after ACL Reconstruction and Other Knee Operations is a comprehensive resource for all medical professionals and support staff working with athletes and active patients looking to get back in the game with confidence.
Download or read book Exploring the Brain After ACL Reconstruction written by Ryan Zarzycki and published by . This book was released on 2018 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rupture of the anterior cruciate ligament (ACL) is a devastating injury affecting approximately 250,000 individuals each year in the United States. Upwards of 130,000 anterior cruciate ligament reconstructions (ACLR) are performed each year. While ACLR restores mechanical stability of the knee, many patients continue to experience functional performance deficits, reduced capacity for physical activity and participation, and second injury. Current rehabilitation strategies may not be sufficiently addressing neurophysiologic alterations and psychological factors related to injury. An improved understanding of these factors may result in more effective post-operative rehabilitation protocols, fewer second injuries and safer return to sports. ☐ The overall goals of this work were: 1) to compare corticospinal, intracortical, and spinal-reflexive excitability in athletes after ACLR and controls, and explore the relationship of these neurophysiologic measures to quadriceps strength, 2) to explore the relationship between psychological readiness to return to sport and gait biomechanics, and 3) to determine if a secondary ACL injury prevention program affects psychological readiness to return to sport and if an improvement in psychological readiness is associated with better outcomes. ☐ This work includes data from two distinct studies. For goal #1, athletes after ACLR underwent neurophysiologic testing via transcranial magnetic stimulation and peripheral electrical stimulation when they achieved 3 important rehabilitation milestones: 1) 2 weeks after surgery, 2) achievement of a “quiet knee” defined as full range of motion and minimal effusion, 3) return to sport (RTS) activities time point defined as achievement of a quadriceps index ≥ 80% and at least 12 weeks post-ACLR. For goals #2 and #3, athletes after ACLR were enrolled after completing impairment resolution defined as: full range of motion, minimal effusion, adequate quadriceps strength and greater than 12 weeks from surgery. Following enrollment, all athletes completed a secondary ACL injury prevention program. Psychological readiness to return to sport and self-reported functional measures were evaluated at enrollment, after the prevention program, and at 1 year after ACLR. ☐ Athletes after ACLR demonstrated alterations in corticospinal, and intracortical excitability early after surgery compared to controls, and these neurophysiologic measures were associated with isometric quadriceps strength during the course of rehabilitation. Changes in these measures did not occur throughout rehabilitation indicating that current rehabilitation may not be addressing cortical alterations associated with chronic quadriceps dysfunction. ☐ For goals #2 and #3 we found that there is a relationship between knee kinematic and kinetic symmetry and psychological readiness to return to sport, prior to return to sport after ACLR. Athletes who scored lower on a psychological readiness to return to sport measure displayed greater asymmetries during gait. Additionally, athletes who demonstrated an improvement in psychological readiness to return to sport had better self-reported function following a secondary injury prevention program and at one year after ACLR. ☐ In conclusion, neurophysiologic pathways from the motor cortex to the quadriceps muscle and psychological factors are related to common impairments and outcomes after ACLR. While research is emerging in these two areas, more research is needed to address the less than optimal outcomes currently related to recovery after ACLR. Addressing cortical excitability and psychological readiness to return to sport during rehabilitation have the potential to improve outcomes after ACLR.
Download or read book ACL Injuries in the Female Athlete written by Frank R. Noyes and published by Springer Science & Business Media. This book was released on 2013-01-04 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearly a million anterior cruciate ligament (ACL) injuries occur each year worldwide, causing long-term problems in the knee joint. This textbook examines the short- and long-term impacts of ACL injuries on the basis of hundreds of published studies. Risk factors for such injuries are explored using data from hypothesis-driven investigations, and possible causes of the higher risk of noncontact ACL injuries in female athletes are analyzed. Neuromuscular training programs shown to reduce the rate of these injuries in female athletes are described in step-by-step detail with the aid of numerous color photographs and video demonstrations. In addition, detailed descriptions are provided for rehabilitation programs to be used after ACL reconstruction in order to reduce the risk of a future injury. The book will be of value to orthopedic surgeons, physical therapists, athletic trainers, sports medicine primary care physicians, and strength and conditioning specialists.
Download or read book ACL Injuries in the Female Athlete written by Frank R. Noyes and published by Springer. This book was released on 2018-09-07 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: This successful book, now in a revised and updated second edition, reviews all aspects of anterior cruciate ligament (ACL) injuries in female athletes, with the focus on complete, noncontact ACL injuries. The opening section discusses anatomy and biomechanics and explains the short- and long-term impacts of complete ACL ruptures, including long-term muscle dysfunction and joint arthritis. Risk factors and possible causes of the higher noncontact ACL injury rates in female athletes compared with male athletes are then discussed in depth. Detailed attention is devoted to neuromuscular training programs and their effectiveness in reducing noncontact ACL injury rates in female athletes, as well as to sports-specific ACL injury prevention and conditioning programs of proven value. Rehabilitation programs after ACL injury and reconstruction that reduce the risk of a future injury are explored, and the concluding section looks at worldwide implementation of neuromuscular ACL injury prevention training and future research directions. The book will be of value to orthopedic surgeons, physical therapists, athletic trainers, sports medicine primary care physicians, and strength and conditioning specialists.
Download or read book The Pediatric Anterior Cruciate Ligament written by Shital N. Parikh and published by Springer. This book was released on 2017-11-17 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book fills the void in the existing literature related to the diagnosis and evaluation of pediatric ACL injuries and presents both current and emerging surgical techniques for pediatric ACL reconstruction. Once considered rare, these injuries are on the rise as children are increasingly active and engaged in high-impact sports. Historically, these injuries have been treated with benign neglect, but there is increasing evidence that non-operative treatment approaches can lead to recurrent instability, further injury to the meniscus or cartilage, and eventually joint degeneration. Opening with discussion of epidemiology, developmental anatomy, and assessment and radiography, this one-stop resource then presents conservative and surgical management strategies and algorithms, including ACL reconstruction without bone tunnels, use of epiphyseal tunnels, trans-physeal tunnels, or hybrid techniques. Special attention is given to the young female athlete, complications, prevention strategies, rehabilitation and return to play considerations. Bringing together the latest clinical evidence with the preferred techniques of experts in the field, The Pediatric Anterior Cruciate Ligament is a comprehensive and detailed analysis of the inherent problems in treating ACL injuries in the pediatric patient, useful for pediatric orthopedic surgeons, orthopedic sports medicine surgeons, primary care sports medicine physicians and other professionals working with the young athlete.
Download or read book Anterior Cruciate Ligament Reconstruction and Dynamic Stability at Time of Release for Return to Sport written by Penny L. Head and published by . This book was released on 2019 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an elevated risk of a second anterior cruciate ligament (ACL) injury following ACL reconstruction (ACLR), determining when an athlete can safely return to sport (RTS) is a challenging task for rehabilitation professionals. Lack of dynamic postural control has been associated with ACL injury and reinjury and should therefore be included in the assessment for readiness to RTS. The primary purpose of this investigation was to examine dynamic stability using the Dynamic Postural Stability Index (DPSI) in athletes following ACLR at the time of release for RTS compared to healthy, matched controls. A secondary purpose was to examine how dynamic postural stability is affected in athletes following ACLR when performing a jump-landing task in three different directions. We hypothesized that 1) athletes with ACLR would demonstrate decreased dynamic postural stability at time of release for RTS compared to matched controls, and 2) dynamic stability for athletes with ACLR would significantly differ among the three jump-landing tasks.
Download or read book Sports Injuries written by Mahmut Nedim Doral and published by Springer Nature. This book was released on 2015-06-29 with total page 3295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sports Injuries: Prevention, Diagnosis, Treatment and Rehabilitation covers the whole field of sports injuries and is an up-to-date guide for the diagnosis and treatment of the full range of sports injuries. The work pays detailed attention to biomechanics and injury prevention, examines the emerging treatment role of current strategies and evaluates sports injuries of each part of musculoskeletal system. In addition, pediatric sports injuries, extreme sports injuries, the role of physiotherapy, and future developments are extensively discussed. All those who are involved in the care of patients with sports injuries will find this textbook to be an invaluable, comprehensive, and up-to-date reference.
Download or read book The Posterior Cruciate Ligament written by Michael Strobel and published by . This book was released on 2010 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Athletes Perceptions of Rehabilitation and the Use of Biofeedback to Enhance Psychological Recovery Following Anterior Cruciate Ligament Reconstruction written by Susan Jane Schwenz and published by . This book was released on 2001 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery of Running Biomechanics After Anterior Cruciate Ligament Reconstruction written by Keith A. Knurr and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Anterior cruciate ligament (ACL) injuries are traumatic for young athletes and typically lead to surgical reconstruction (ACLR) followed by extensive rehabilitation. Athletes commonly demonstrate altered biomechanics during running post-ACLR. Persistent abnormalities in mechanics have been implicated as a mechanism of post-ACLR osteoarthritis. The purpose of this thesis was to investigate the longitudinal recovery of running biomechanics and the relationship to quadriceps performance and bone health. Methods: Healthy baseline and post-ACLR data from the Badger Athletic Performance database (2011 to 2022) were utilized. Chapter 1 leveraged preinjury running data to describe changes in running mechanics over the first 12 months post-ACLR. Chapter 2 characterized the effect of running speed on knee biomechanics between 4-7 and 8-12 months post-ACLR. Chapter 3 assessed the relationship between recovery in running biomechanics and quadriceps performance 3-24 months post-ACLR. Chapter 4 explored the influence knee biomechanics during running and quadriceps performance have on bone mineral density between 3-24 months post-ACLR. Results: Athletes demonstrated persistent deficits in surgical knee biomechanics during running post-ACLR compared to preinjury. Running speed and quadriceps performance were associated with changes in knee biomechanics, but neither fully resolved running asymmetries. Greater recovery of quadriceps rate of torque development post-ACLR was associated with less bone loss. Conclusion: This thesis highlights persistent abnormalities in knee biomechanics during running following ACLR, identifies quadriceps performance and running speed as potential modifiable factors associated with running mechanics, and suggests that restoring quadriceps rate of torque development early and completely may help to minimize bone loss post-ACLR.
Download or read book Assessing and Modifying Neuromuscular Risk Factors for Anterior Cruciate Ligament Injury in Female Athletes written by Joanne Parsons and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Injury to the anterior cruciate ligament (ACL) may have consequences for an athlete in the form of pain, decreased activity levels and early-onset osteoarthritis. Female athletes are at increased risk of injury, perhaps because of differences in neuromuscular function. Methods of identifying risk factors and effective prevention strategies for ACL injury have traditionally involved athletes of high school age or older. However by that age, the opportune time to intervene may have passed. This thesis involves a sequence of studies which measures the neuromuscular function of younger athletes, aged 10-14 years. First, the reliability of measuring strength and power of the lower extremity on an isokinetic dynamometer was explored. Torque and power of the hip flexors and knee extensors were the only measures with acceptable reliability. Conversely, peak velocity of all the tested hip and knee movements demonstrated acceptable reliability. A high amount of variability was found with all test movements, and so alternate tests should be used if measuring an individual athlete's ability. From the data collected within the reliability study, a sex comparison was undertaken to determine if neuromuscular power differed at this young age. It was determined that girls and boys between 10 and 14 years of age do not differ in terms of knee or hip movement velocity or power. There is evidence to suggest that sex differences exist by adulthood; further research is required to determine when the disparity becomes apparent. The final project was to determine whether strength training would improve the manner in which young female athletes land from a jump; a common ACL injury mechanism. This randomized controlled trial found no difference between the intervention group who trained their legs, and the control group who trained their arms. However those athletes with the poorest landings appeared to improve their movement pattern regardless of training regime. This thesis contributes to the literature by providing evidence for measurement protocols for young athletes, introducing neuromuscular power instead of strength into the investigation of contributing factors to injury, and by furthering the examination of strength training as an effective component of prevention programs.
Download or read book Ligament Reconstructions written by L'hocine Yahia and published by World Scientific. This book was released on 2021-04-12 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ACL or anterior cruciate ligament is the most important ligament in the knee. When it is completely torn, it can lead to instability or buckling of the knee. There are several options to choose from when selecting a graft for ACL reconstruction such as using autografts including patellar tendon, hamstring tendon, and quadriceps tendon, and allografts (also known as donor tissue or cadaver tissue). Artificial ligaments are also discussed since they are still used in Europe and Asia. This book summarizes the pros and cons of each graft option in detail.
Download or read book Neuromuscular Adaptations Following Acl Injury and Reconstruction written by Adam Bryant and published by LAP Lambert Academic Publishing. This book was released on 2009-12 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main aim of this thesis was to identify neuromuscular variables, derived during open and closed kinetic chain tasks that relate to and predict post anterior cruciate ligament (ACL) injury/ACL reconstruction (ACLR) functional outcome. Firstly, it was necessary to assign a clinical measure of knee functionality by determining the subjective and objective limitations associated with ACL deficiency (ACLD) and ACL reconstruction (ACLR) (Experiment 1). Then, the effect of ACL deficiency and ACLR on strength deficits within the operational domain of the quadriceps and hamstrings, together with medial and lateral hamstring antagonist activity, was determined during an open kinetic chain movement (Experiment 2). An investigation into the effects of ACL deficiency and ACLR on lower limb kinematics, kinetics and neuromuscular responses during a dynamic, closed kinetic chain deceleration task followed (Experiment 3). Finally, the strength of the associations between knee functionality and adaptations displayed during open and closed kinetic chain tasks by ACLD and ACLR subjects was elucidated (Experiment 4). The fourth study was designed to address the main aim of the thesis.
Download or read book Keeping Athletes on the Field written by Amelia J.H. Arundale and published by . This book was released on 2017 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its three aims this dissertation explored the outcomes of a primary prevention program, rehabilitation and return to sport after ACL reconstruction, and a secondary ACL injury prevention program. The FIFA11+ is a primary prevention program that reduces knee injuries in men’s collegiate soccer, however has not been examined in women’s collegiate soccer and it remains unknown if the program is effective in changing movement patterns associated with ACL injuries. In its first aim this dissertation established smallest detectable change and minimal important difference values for motion analysis of a drop jump. Then using these values to provide clinical context, this study found that although effective in reducing non-contact lower extremity injuries, the FIFA11+ did not reduce knee injuries or change biomechanical risk factors. In the second aim this dissertation explored if professional male athletes in Major League Soccer (MLS) after ACL reconstruction were at an increased risk for injuries, beyond their known increased risk for a new knee injury, and how returning to play after ACL reconstruction affected their career length. This study found that although not at an increased risk for lower extremity injury, MLS athletes had shorter careers compared to age matched controls. Seemingly these athletes made a return to sport but not a return to their preinjury level of performance. In its third aim this study explored the outcomes of the Anterior Cruciate Ligament-Specialized Post-Operative Return to Sports (ACL-SPORTS) program, a secondary prevention program designed to help bridge the gap between physical therapy discharge and return to sport. This study found that both men and women had increases in objective and self-reported outcome measures over the course of the training program, with the exception of quadriceps strength limb symmetry. Men had an increase in quadriceps strength limb symmetry with the program, where women’s strength symmetry remained the same. Further examination of the men found that 95% returned to their preinjury level of sport and only one had a second ACL injury (incidence 2.5%) in the two years following ACL reconstruction.
