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Sports Biomechanics

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https://www.readbyqxmd.com/read/28078610/optimization-of-the-return-to-sport-paradigm-after-anterior-cruciate-ligament-reconstruction-a-critical-step-back-to-move-forward
#1
REVIEW
Bart Dingenen, Alli Gokeler
Athletes who have sustained an anterior cruciate ligament (ACL) injury often opt for an ACL reconstruction (ACLR) with the goal and expectation to resume sports. Unfortunately, the proportion of athletes successfully returning to sport is relatively low, while the rate of second ACL injury has been reported to exceed 20% after clearance to return to sport, especially within younger athletic populations. Despite the development of return-to-sport guidelines over recent years, there are still more questions than answers on the most optimal return-to-sport criteria after ACLR...
January 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28043957/computational-modelling-of-traumatic-brain-injury-predicts-the-location-of-chronic-traumatic-encephalopathy-pathology
#2
Mazdak Ghajari, Peter J Hellyer, David J Sharp
Traumatic brain injury can lead to the neurodegenerative disease chronic traumatic encephalopathy. This condition has a clear neuropathological definition but the relationship between the initial head impact and the pattern of progressive brain pathology is poorly understood. We test the hypothesis that mechanical strain and strain rate are greatest in sulci, where neuropathology is prominently seen in chronic traumatic encephalopathy, and whether human neuroimaging observations converge with computational predictions...
January 2, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28013024/sex-differences-in-total-frontal-plane-knee-movement-and-velocity-during-a-functional-single-leg-landing
#3
Walter L Jenkins, D S Blaise Williams, Kelsey Williams, Josh Hefner, Hannah Welch
OBJECTIVES: Females land with more knee valgus than males. While most studies have evaluated lower extremity mechanics during double leg landing, most sports require single-leg landing from a double or single leg takeoff. Further, knee movement occurs toward both varus and valgus during functional landing. The purpose of this study was to determine if differences exist between females and males in total frontal plane movement and velocity of the knee during single-leg landing. DESIGN: Experimental cohort...
September 6, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28002644/a-novel-phased-concept-course-for-the-delivery-of-anatomy-and-orthopedics-training-in-medical-education
#4
Stefan Klima, Pierre Hepp, Sabine Löffler, Jon Cornwall, Niels Hammer
Integration of anatomy and clinical teaching is a theoretical ideal, yet there is a worldwide paucity of such amalgamation. These teaching models provide support for medical trainees, an important element in Germany where orthopedic intern numbers have declined and anecdotal evidence suggests disinterest in orthopedics. The aim of the study was to develop an integrated anatomy-surgical course for undergraduate medical training, assess the model developed, and explore how medical students perceive orthopedics as a career...
December 21, 2016: Anatomical Sciences Education
https://www.readbyqxmd.com/read/27918675/biomechanics-in-paralympics-implications-for-performance
#5
Floor Morriën, Matthew J D Taylor, Florentina J Hettinga
PURPOSE: To provide an overview of biomechanical studies in Paralympic research and their relevance for performance in Paralympic sports. METHODS: Search terms ' Paralympic Biomechanics', 'Paralympic Sport Performance', 'Paralympic Athlete Performance', and Paralympic Athlete' were entered into the electronic database PubMed. RESULTS: Thirty-four studies were included. Biomechanical studies in Paralympics mainly contributed to performance enhancement by technical optimization (n=32) and/or injury prevention (n=6)...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27916185/editorial-commentary-when-is-it-just-a-labral-tear-and-not-femoroacetabular-impingement
#6
EDITORIAL
Paul E Beaulé
How often in medicine do we have a diagnosis or pathology to evaluate and treat that hasn't previously been described? With the introduction of the concept of femoroacetabular impingement in 1999, Ganz and colleagues effectively put forth a not-previously-described diagnosis in the field of orthopaedic surgery that has expanded into the biosphere of musculoskeletal care, where we can find now research on this subject in radiology, rheumatology, biomechanics, biomedical, physical therapy, and sports medicine journals...
December 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27904791/current-concepts-in-biomechanical-interventions-for-patellofemoral-pain
#7
Richard W Willy, Erik P Meira
: Patellofemoral pain (PFP) has historically been a complex and enigmatic issue. Many of the factors thought to relate to PFP remain after patients' symptoms have resolved making their clinical importance difficult to determine. The tissue homeostasis model proposed by Dye in 2005 can assist with understanding and implementing biomechanical interventions for PFP. Under this model, the goal of interventions for PFP should be to re-establish patellofemoral joint (PFJ) homeostasis through a temporary alteration of load to the offended tissue, followed by incrementally restoring the envelope of function to the baseline level or higher...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27904787/biomechanics-and-pathomechanics-of-the-patellofemoral-joint
#8
Janice K Loudon
The patellofemoral joint is a joint that can be an area of concern for athletes of various sports and ages. The joint is somewhat complex with multiple contact points and numerous tissues that attach to the patella. Joint forces are variable and depend on the degree of knee flexion and whether the foot is in contact with the ground. The sports medicine specialist must have a good working knowledge of the anatomy and biomechanics of the patellofemoral joint in order to treat it effectively.
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27896395/level-of-evidence-of-free-papers-presented-at-the-european-society-of-sports-traumatology-knee-surgery-and-arthroscopy-congress-from-2008-to-2016
#9
REVIEW
Jeffrey Kay, Muzammil Memon, Joelle Rogozinsky, Nicole Simunovic, Romain Seil, Jon Karlsson, Olufemi Rolland Ayeni
PURPOSE: The European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) congress is an important venue, and the research presented can be a critical source of information used to impact clinical decisions and health policies. The purpose of this study was to evaluate the level of evidence of clinical free papers presented at the ESSKA congress from 2008 to 2016. Moreover, this study evaluated whether there were any changes in the distribution of level of evidence over time...
November 28, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27888844/mr-imaging-of-the-plantar-plate-normal-anatomy-turf-toe-and-other-injuries
#10
REVIEW
Caio Nery, Daniel Baumfeld, Hilary Umans, André F Yamada
The metatarsophalangeal (MTP) joint complex is a weight-bearing structure important to the biomechanics of the standing position, walking, shoe wearing, and sport participation. Acute dorsiflexion injury of the first MTP joint, "turf toe," is common among American football and soccer players. The first and lesser MTP joint complexes can be affected by degenerative or inflammatory arthritis, infarct, and infection. These conditions can lead to plantar plate disruption. Imaging studies help physicians to properly diagnose and treat this condition...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27871655/surgical-indications-and-technique-for-anterior-cruciate-ligament-reconstruction-combined-with-lateral-extra-articular-tenodesis-or-anterolateral-ligament-reconstruction
#11
REVIEW
Bart Vundelinckx, Benjamin Herman, Alan Getgood, Robert Litchfield
After anterior cruciate ligament (ACL) rupture, anteroposterior and rotational laxity in the knee causes instability, functional symptoms, and damage to other intra-articular structures. Surgical reconstruction aims to restore the stability in the knee, and to improve function and ability to participate in sports. It also protects cartilage and menisci from secondary injuries. Because of persistent rotational instability after ACL reconstruction, combined intra-articular and extra-articular procedures are more commonly performed...
January 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27859527/gait-mechanics-and-second-acl-rupture-implications-for-delaying-return-to-sport
#12
Jacob J Capin, Ashutosh Khandha, Ryan Zarzycki, Kurt Manal, Thomas S Buchanan, Lynn Snyder-Mackler
Second anterior cruciate ligament rupture is a common and devastating injury among young women who return to sport after ACL reconstruction, but it is inadequately understood. The purpose of this study was to compare gait biomechanics and return-to-sport time frames in a matched cohort of young female athletes who, after primary ACLR, returned to sport without re-injury or sustained a second ACL injury. Approximately 6 months after primary reconstruction, 14 young women (age 16 ± 2 years) involved in jumping, cutting, and pivoting sports underwent motion analysis testing after physical therapy and impairment resolution...
November 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27817976/return-to-sport-activity-after-anterior-cruciate-ligament-reconstruction-in-skeletally-immature-athletes-with-manual-drilling-original-all-inside-reconstruction-at-8-years-follow-up
#13
Giacomo Placella, Matteo Bartoli, Marco Peruzzi, Andrea Speziali, Valerio Pace, Giuliano Cerulli
OBJECTIVE: Anterior cruciate ligament (ACL) tears are common injuries in adolescent athletes, especially in those who bear high stress on their knees due to shearing forces. The goal of the surgical procedures in skeletally immature patients is to restore joint stability avoiding the adverse effects on the growth process. The aim of this study was to verify the return of the skeletally immature professional athletes to sports in the long-term, following ACL reconstruction with the original all-inside technique and with manual drilling...
November 3, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27814667/assessment-of-relationships-between-joint-motion-quality-and-postural-control-in-patients-with-chronic-ankle-joint-instability
#14
Dawid Bączkowicz, Krzysztof Falkowski, Edyta Majorczyk
Study Design Controlled laboratory study, cross sectional. Background Lateral ankle sprains are among the most common injuries encountered during athletic participation. Following the initial injury there is an alarmingly high risk of re-injury and development of chronic ankle instability (CAI), which is dependent on a combination of factors, including sensorimotor deficits and changes in the biomechanical environment of the ankle joint. Objective To evaluate CAI-related disturbances in arthrokinematic motion quality and postural control and the relationships between them...
November 4, 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27796197/patients-with-insertional-achilles-tendinopathy-exhibit-differences-in-ankle-biomechanics-as-opposed-to-strength-and-range-of-motion
#15
Ruth L Chimenti, A Samuel Flemister, Joshua Tome, James M McMahon, Jeff R Houck
Study Design Controlled laboratory study; cross-sectional. Background Little is known about ankle range of motion (ROM) and strength among patients with insertional Achilles tendinopathy (IAT) and whether limited ankle ROM and plantar flexor weakness impact IAT symptom severity. Objectives The purposes of the study were (1) to examine whether participants with IAT exhibit limited non-weight-bearing dorsiflexion ROM, reduced plantar flexor strength, and/or altered ankle biomechanics during stair ascent; and (2) to determine which impairments are associated with symptom severity...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27792221/successful-treatment-of-groin-pain-syndrome-in-a-pole-vault-athlete-with-core-stability-exercise-a-case-report
#16
Antonio Dello Iacono, Nicola Maffulli, Lior Laver, Johnny Padulo
CONTEXT: The purpose of this case report is to present a case of groin pain in a pole vault athlete describing the biomechanical features of the injury`s mechanism, acute medical management, and its successful rehabilitation. CASE REPORT: A 22 years old professional pole-vaulter sustained an injury during a regular training session. The athlete reported significant left lower abdominal and left proximal adductor discomfort in all activities, including basic trunk motion when moving in bed, sit to stand, and walking, and was unable to return to the regular training...
October 28, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27770784/effects-of-two-neuromuscular-training-programs-on-running-biomechanics-with-load-carriage-a-study-protocol-for-a-randomised-controlled-trial
#17
Bernard X W Liew, Susan Morris, Justin W L Keogh, Brendyn Appleby, Kevin Netto
BACKGROUND: In recent years, athletes have ventured into ultra-endurance and adventure racing events, which tests their ability to race, navigate, and survive. These events often require race participants to carry some form of load, to bear equipment for navigation and survival purposes. Previous studies have reported specific alterations in biomechanics when running with load which potentially influence running performance and injury risk. We hypothesize that a biomechanically informed neuromuscular training program would optimize running mechanics during load carriage to a greater extent than a generic strength training program...
October 22, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27757290/bipartite-patella-in-35-year-old-fitness-instructor-a-case-report
#18
Sebastian Zabierek, Jakub Zabierek, Adam Kwapisz, Marcin E Domzalski
BACKGROUND AND PURPOSE: The patella plays an important role in knee biomechanics and provides anterior coverage of the knee joint. One to two percent of the population has an anatomical variant of patella called a bipartite patella that usually does not case pain. However, occasionally after injury or overuse during sport it can be a source of anterior knee pain. The purpose of this case report was to present a rare variant of bipartite patella and highlight conservative treatment of this condition...
October 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27755283/hip-biomechanics-are-altered-in-male-runners-with-achilles-tendinopathy
#19
Mark W Creaby, Conor Honeywill, Melinda M Franettovich Smith, Anthony G Schache, Kay M Crossley
PURPOSE: Achilles tendinopathy (AT) is a prevalent injury in running sports. Understanding the biomechanical factors associated with AT will assist in its management and prevention. The purpose of this study was to compare hip and ankle kinematics and kinetics in runners with and without AT. METHODS: Fourteen male runners with AT and eleven healthy male runners (CTRL) ran over-ground whilst lower-limb joint motion and ground reaction force data were synchronously captured...
October 17, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27755266/pediatric-phalanx-fractures
#20
Joshua M Abzug, Karan Dua, Andrea Sesko Bauer, Roger Cornwall, Theresa O Wyrick
Phalangeal fractures are the most common type of hand fracture that occurs in the pediatric population and account for the second highest number of emergency department visits for fractures in the United States. The incidence of phalangeal fractures is the highest in children aged 10 to 14 years, which coincides with the time that most children begin playing contact sports. Younger children are more likely to sustain a phalangeal fracture in the home setting as a result of crush and laceration injuries. Salter-Harris type II fractures of the proximal phalanx are the most common type of finger fracture...
November 2016: Journal of the American Academy of Orthopaedic Surgeons
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