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knee injury prevention program

Lauren C Benson, Thomas G Almonroeder, Kristian M O'Connor
Patellofemoral pain (PFP) is common among runners and those recovering from anterior cruciate ligament reconstruction. Training programs designed to prevent or treat injuries often include balance training, although balance interventions have been reported to coincide with more knee injuries. Knowledge of the effect of balance exercises on knee mechanics may be useful when designing training programs. High knee abduction moment has been implicated in the development of PFP, and imbalance between vastus lateralis (VL) and vastus medialis oblique (VMO) may contribute to patellofemoral stress...
December 24, 2016: Human Movement Science
Dai Sugimoto, Carl G Mattacola, Heather M Bush, Staci M Thomas, Kim D Barber Foss, Gregory D Myer, Timothy E Hewett
CONTEXT:  Fewer athletic injuries and lower anterior cruciate ligament injury incidence rates were noted in studies of neuromuscular training (NMT) interventions that had high compliance rates. However, several groups have demonstrated that preventive NMT interventions were limited by low compliance rates. OBJECTIVE:  To descriptively analyze coach and athlete compliance with preventive NMT and compare the compliance between study arms as well as among school levels and sports...
December 15, 2016: Journal of Athletic Training
Victor R Carlson, Frances T Sheehan, Barry P Boden
BACKGROUND: As the most viable method for investigating in vivo anterior cruciate ligament (ACL) rupture, video analysis is critical for understanding ACL injury mechanisms and advancing preventative training programs. Despite the limited number of published studies involving video analysis, much has been gained through evaluating actual injury scenarios. METHODS: Studies meeting criteria for this systematic review were collected by performing a broad search of the ACL literature with use of variations and combinations of video recordings and ACL injuries...
November 29, 2016: JBJS Reviews
S H Hosseini Nasab, Renate List, Katja Oberhofer, Sandro F Fucentese, Jess G Snedeker, William R Taylor
BACKGROUND: The posterior cruciate ligament (PCL) is the strongest ligament of the knee, serving as one of the major passive stabilizers of the tibio-femoral joint. However, despite a number of experimental and modelling approaches to understand the kinematics and kinetics of the ligament, the normal loading conditions of the PCL and its functional bundles are still controversially discussed. OBJECTIVES: This study aimed to generate science-based evidence for understanding the functional loading of the PCL, including the anterolateral and posteromedial bundles, in the healthy knee joint through systematic review and statistical analysis of the literature...
2016: PloS One
H A Ismail, L E El-Bassiony
We evaluate function outcomes of the reverse-flow ALT perforator flap to reconstruct severe post-burn knee contracture. Between October 2012 and December 2014, 10 patients with severe post-burn knee contracture were subjected to reconstruction with 10 ipsilateral reversed-flow ALT perforator flaps. All the patients were male. Ages ranged from 15 to 47 years (mean = 32 years). Time from burn injury to patient presentation ranged from 2-8 months. All patients demonstrated post-burn flexion contracture of the knee joint, ranging from 35 to 75 degrees...
March 31, 2016: Annals of Burns and Fire Disasters
Julie A Thompson, Andrew A Tran, Corey T Gatewood, Rebecca Shultz, Amy Silder, Scott L Delp, Jason L Dragoo
BACKGROUND: Anterior cruciate ligament (ACL) injuries are common, and children as young as 10 years of age exhibit movement patterns associated with an ACL injury risk. Prevention programs have been shown to reduce injury rates, but the mechanisms behind these programs are largely unknown. Few studies have investigated biomechanical changes after injury prevention programs in children. PURPOSE/HYPOTHESIS: To investigate the effects of the F-MARC 11+ injury prevention warm-up program on changes to biomechanical risk factors for an ACL injury in preadolescent female soccer players...
October 28, 2016: American Journal of Sports Medicine
Ja K Gu, Luenda E Charles, Michael E Andrew, Claudia C Ma, Tara A Hartley, John M Violanti, Cecil M Burchfiel
INTRODUCTION: Studies have reported associations between obesity and injury in a single occupation or industry. Our study estimated the prevalence of work-site injuries and investigated the association between obesity and work-site injury in a nationally representative sample of U.S. workers. METHODS: Self-reported weight, height, and injuries within the previous three months were collected annually for U.S. workers in the National Health Interview Survey (NHIS) from 2004-2012...
September 2016: Journal of Safety Research
Timothy E Hewett, Gregory D Myer, Kevin R Ford, Mark V Paterno, Carmen E Quatman
Economic and societal pressures influence modern medical practice to develop and implement prevention strategies. Anterior cruciate ligament (ACL) injury devastates the knee joint leading to short term disability and long term sequelae. Due to the high risk of long term osteoarthritis in all treatment populations following ACL injury, prevention is the only effective intervention for this life-altering disruption in knee health. The "Sequence of Prevention" Model provides a framework to monitor progress towards the ultimate goal of preventing ACL injuries...
November 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
May Arna Risberg, Hege Grindem, Britt Elin Øiestad
We like to think that we are successful in the treatment of individuals with anterior cruciate ligament (ACL) injury, but recent literature reveals that only about 60% of these individuals make a full recovery, less than 60% return to sport, and more than 50% develop knee osteoarthritis (OA) by middle age. Both short- and long-term outcomes after ACL injury and reconstruction need attention and action. We need to implement strategies early after ACL injury to prevent the development and progression of posttraumatic OA, rather than "sit and wait" until posttraumatic knee OA has developed...
September 2016: Journal of Orthopaedic and Sports Physical Therapy
Sarah A Richmond, Alberto Nettel-Aguirre, Patricia K Doyle-Baker, Alison Macpherson, Carolyn A Emery
Objectives. To examine body mass index (BMI) and waist circumference (WC) as risk factors for sport injury in adolescents. Design. A secondary analysis of prospectively collected data from a pilot cluster randomized controlled trial. Methods. Adolescents (n = 1,040) at the ages of 11-15 years from two Calgary junior high schools were included. BMI (kg/m(2)) and WC (cm) were measured from direct measures at baseline assessment. Categories (overweight/obese) were created using validated international (BMI) and national (WC) cut-off points...
2016: Journal of Sports Medicine (Hindawi Publishing Corporation)
Robert W Westermann, Zachary Y Kerr, Peter Wehr, Annuziato Amendola
BACKGROUND: Sports-related concussions (SRCs) have gained increased societal interest in the past decade. The National Collegiate Athletic Association (NCAA) has implemented legislation and rule changes to decrease the incidence and risk of head injury impacts. The "targeting" rule forbids initiating contact with the crown of a helmet and targeting defenseless players in the head and neck area; however, there are concerns that this rule change has unintentionally led to an increased incidence of lower extremity injuries...
December 2016: American Journal of Sports Medicine
Anna Cronström, Mark W Creaby, Jenny Nae, Eva Ageberg
BACKGROUND: Increased knee abduction during weight-bearing activities is suggested to be a contributing factor for the high knee injury risk reported in women. However, studies investigating gender difference in knee abduction are inconclusive. OBJECTIVE: To systematically review gender-differences in knee abduction during weight-bearing activities in individuals with or without knee injury. METHODS: A systematic review and meta-analysis were conducted according to the PRISMA guidelines...
September 2016: Gait & Posture
S O'Connor, N McCaffrey, E F Whyte, K A Moran
Despite the popularity of collegiate Gaelic football in Ireland and the recent expansion into the United Kingdom and United States, no previous study has examined injury incidence. A prospective epidemiological study was implemented to establish injury incidence in 217 (19.3 ± 1.9 years) male collegiate Gaelic footballers from two collegiate institutions in one season. An injury was defined as any injury sustained during training or competition resulting in time lost from play or athlete reported restricted performance...
July 19, 2016: Scandinavian Journal of Medicine & Science in Sports
Hsin-Min Wang, Sandra J Shultz, Randy J Schmitz
CONTEXT: Greater anterior knee laxity (AKL) has been identified as an anterior cruciate ligament (ACL) injury risk factor. The structural factors that contribute to greater AKL are not fully understood but may include the ACL and bone geometry. OBJECTIVE: To determine the relationship of ACL width and femoral notch angle to AKL. DESIGN: Cross-sectional study. SETTING: Controlled laboratory. PATIENTS OR OTHER PARTICIPANTS: Twenty recreationally active females (age = 21...
June 2, 2016: Journal of Athletic Training
Myungsun Lee, Gunsoo Han
[Purpose] This study aimed to investigate the effect of peculiar complex core balance training on the isokinetic muscle function of the knee joint and lumbus to provide fundamental data for establishing a training program that focuses on improving the performance and prevention of injury by developing the core and low extremity muscles. [Subjects and Methods] The participants in this study included a total of ten high school athletes involved in a throwing event for over five years. The subjects were randomly divided into two groups: The experimental group (N=5) and the control group (N=5)...
April 2016: Journal of Physical Therapy Science
Alireza Monajati, Eneko Larumbe-Zabala, Mark Goss-Sampson, Fernando Naclerio
BACKGROUND: Hamstring strain and anterior cruciate ligament injuries are, respectively, the most prevalent and serious non-contact occurring injuries in team sports. Specific biomechanical and neuromuscular variables have been used to estimate the risk of incurring a non-contact injury in athletes. OBJECTIVE: The aim of this study was to systematically review the evidences for the effectiveness of injury prevention protocols to modify biomechanical and neuromuscular anterior cruciate and/or hamstring injuries associated risk factors in uninjured team sport athletes...
2016: PloS One
Keiko Amano, Valentina Pedoia, Favian Su, Richard B Souza, Xiaojuan Li, C Benjamin Ma
BACKGROUND: The effectiveness of anterior cruciate ligament (ACL) reconstruction in preventing early osteoarthritis is debated. Restoring the original biomechanics may potentially prevent degeneration, but apparent pathomechanisms have yet to be described. Newer quantitative magnetic resonance (qMR) imaging techniques, specifically T1ρ and T2, offer novel, noninvasive methods of visualizing and quantifying early cartilage degeneration. PURPOSE: To determine the tibiofemoral biomechanical alterations before and after ACL reconstruction using magnetic resonance imaging (MRI) and to evaluate the association between biomechanics and cartilage degeneration using T1ρ and T2...
April 2016: Orthopaedic Journal of Sports Medicine
Margarida Sá Fernandes, Rogério Pereira, Renato Andrade, Sebastiano Vasta, Hélder Pereira, João Páscoa Pinheiro, João Espregueira-Mendes
PURPOSE: The purpose of this study was to investigate the association of different osteoarticular femoral and tibial morphology and morphometric parameters with the risk of anterior cruciate ligament (ACL) rupture. METHODS: Thirty-six patients (29 male and 7 female) with an ACL rupture (<6 months) and 36 age and sex-matched controls were included. The anatomomorphological parameters and morphometrics of the distal epiphysis of the femur and proximal epiphysis of the tibia were measured through conventional lateral radiography of the knee...
May 9, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Jairo Vázquez-Guerrero, Gerard Moras, Jennifer Baeza, Sergio Rodríguez-Jiménez
The purpose of the study was to compare the force outputs achieved during a squat exercise using a rotational inertia device in stable versus unstable conditions with different loads and in concentric and eccentric phases. Thirteen male athletes (mean ± SD: age 23.7 ± 3.0 years, height 1.80 ± 0.08 m, body mass 77.4 ± 7.9 kg) were assessed while squatting, performing one set of three repetitions with four different loads under stable and unstable conditions at maximum concentric effort. Overall, there were no significant differences between the stable and unstable conditions at each of the loads for any of the dependent variables...
2016: PloS One
Marilia Dos Santos Andrade, Naryana C Mascarin, Roberta Foster, Zsuzsanna I DE Jarmy DI Bella, Rodrigo L Vancini, Claudio A DE Lira
BACKGROUND: Muscular strength imbalance is an important risk factor for ACL injury, but it is not clear the impact of menstrual cycle on muscular strength balance. Our aims were to verify whether muscular balance (hamstring-to-quadriceps peak torque strength balance ratio) during menstrual cycle (luteal and follicular phases) and compare gender differences relative to strength balance to observe possible fluctuations in strength balance ratio. METHODS: Thirty-eight soccer athletes (26 women and 12 men) took part in this study...
April 5, 2016: Journal of Sports Medicine and Physical Fitness
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