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Hamstring injury prevention

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https://www.readbyqxmd.com/read/29658521/ratios-of-torques-of-antagonist-muscle-groups-in-female-soccer-players
#1
Artur Struzik, Adam Siemieński, Tadeusz Bober, Bogdan Pietraszewski
PURPOSE: An increase in the value of the hamstring-to-quadriceps (H/Q) ratio with an increase in angular velocity may effectively prevent injuries of the back of the thigh. Previous studies have found that the conventional H/Q ratio was unaltered along with an increasing angular velocity in females. Therefore, this study aimed to investigate the relationships between the conventional H/Q ratio and angular velocity in a group of female soccer players. METHODS: The study was carried out on a group of 16 female soccer players (age: 20...
2018: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29655857/the-sequence-of-prevention-for-musculoskeletal-injuries-among-adult-recreational-footballers-a-systematic-review-of-the-scientific-literature
#2
REVIEW
Ozgur Kilic, Ellen Kemler, Vincent Gouttebarge
OBJECTIVE: To gather epidemiological information related to all steps of Van Mechelen's "sequence of prevention" for musculoskeletal injuries among adult recreational football players. METHODS: A systematic review of the scientific literature was conducted in Medline via Pubmed. Therefore, two highly sensitive search strategies based on three groups of keywords (and related search terms) were used. RESULTS: In total, 33 relevant original studies were included in our systematic review...
February 2, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29650337/knee-flexion-not-hip-extension-strength-is-persistently-reduced-following-hamstring-strain-injury-in-australian-football-athletes-implications-for-periodic-health-examinations
#3
Paula C Charlton, Benjamin Raysmith, Martin Wollin, Simon Rice, Craig Purdam, Ross A Clark, Michael K Drew
OBJECTIVES: Determine whether clinically feasible tests of isometric lower limb strength and range of motion (ROM) in Australian Football (AF) athletes are useful in Periodic Health Examinations to identify persistent deficits following hamstring strain injury (HSI). DESIGN: Case-control. METHODS: Thirty-seven male, semi-professional AF athletes (mean±SD; age, 20.2±2.9years; height, 1.7±0.5m; mass, 81±9.2kg) participated, ten athletes (37%) reported HSI within the previous three seasons of competition...
April 3, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29576645/anterior-cruciate-ligament-reconstruction-with-tibial-attachment-preserving-hamstring-graft-without-implant-on-tibial-side
#4
Skand Sinha, Ananta Kumar Naik, Mridul Maheshwari, Sumedh Sandanshiv, Durgashankar Meena, Rajendra K Arya
Background: Tibial attachment preserving hamstring graft could prevent potential problems of free graft in anterior cruciate ligament (ACL) reconstruction such as pull out before graft-tunnel healing or rupture before ligamentization. Different implants have been reportedly used for tibial side fixation with this technique. We investigated short-term outcome of ACL reconstruction (ACLR) with tibial attachment sparing hamstring graft without implant on the tibial side by outside in technique...
March 2018: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/29552504/anterior-cruciate-ligament-reconstruction-in-a-patient-who-has-received-systemic-steroids-for-autoimmune-disease
#5
Tetsuro Ushio, Ken Okazaki, Hideki Mizu-Uchi, Satoshi Hamai, Yukio Akasaki, Yasuharu Nakashima
Background: An anterior cruciate ligament (ACL) reconstruction has become more common and the surgical morbidity has decreased, it has been performed not only in younger people to play sports but also middle-aged people, with satisfactory results. Therefore, some patients might have comorbidities for which they take medicines. Especially the medicines, such as systemic steroids, might influence the reconstructed ligament strength and durability. Case report: A 49-year-old woman who was taking oral steroids for autoimmune hepatitis suffered a spontaneous ACL injury...
January 2018: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
https://www.readbyqxmd.com/read/29520841/adductor-magnus-an-emg-investigation-into-proximal-and-distal-portions-and-direction-specific-action
#6
Matthew L Benn, Tania Pizzari, Leanne Rath, Kylie Tucker, Adam I Semciw
Cadaveric studies indicate that adductor magnus is structurally partitioned into at least two regions. The aim of this study was to investigate the direction-specific actions of proximal and distal portions of adductor magnus, and in doing so determine if these segments have distinct functional roles. Fine-wire EMG electrodes were inserted into two portions of adductor magnus of 12 healthy young adults. Muscle activity was recorded during maximum voluntary isometric contractions (MVICs) across eight tests (hip flexion/extension, internal/external rotation, abduction, and adduction at 0°, 45°, and 90° hip flexion)...
May 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29514817/prevention-programmes-including-nordic-exercises-to-prevent-hamstring-injuries-in-football-players-pedro-synthesis
#7
Matheus Oliveira Almeida, Chris G Maher, Bruno T Saragiotto
No abstract text is available yet for this article.
March 7, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29506423/muscle-strength-characteristics-of-the-hamstrings-and-quadriceps-in-players-from-a-high-level-youth-football-soccer-academy
#8
Kerry Peek, Don Gatherer, Kyle J M Bennett, Job Fransen, Mark Watsford
The objective of this study was to investigate knee muscle strength characteristics in players from a high-level youth football Academy. In total, 110 players (aged 8-15 years) underwent muscle strength assessments carried out by a research physiotherapist using a computer-linked hand-held dynamometer. Results indicated that isometric hamstrings and quadriceps strength increased with age, whereas the isometric hamstring to quadriceps (H/Q) ratio decreased with age. A number of youth football players (n = 20; 18%; 95% CI: 11-27%) demonstrated isometric H/Q ratios of less than 0...
March 5, 2018: Research in Sports Medicine
https://www.readbyqxmd.com/read/29505833/knee-flexion-strength-is-significantly-reduced-following-competition-in-semi-professional-australian-rules-football-athletes-implications-for-injury-prevention-programs
#9
Paula C Charlton, Benjamin Raysmith, Martin Wollin, Simon Rice, Craig Purdam, Ross A Clark, Michael K Drew
OBJECTIVES: To evaluate strength and flexibility measures pre- and post- Australian Football (AF) competition to determine their potential utility as secondary prevention measures. DESIGN: Cohort study. SETTING: Semi-professional AF club. PARTICIPANTS: Ten male AF athletes (mean ± SD; age, 21.3 ± 2.2 years; height, 186.1 ± 6.3 cm; weight, 83.5 ± 8.6 kg). MAIN OUTCOME MEASURES: Maximal unilateral isometric knee flexion strength performed in 45 degrees of hip flexion and 30 degrees of knee flexion, flexibility measures of hip and knee extension and ankle dorsiflexion...
February 2, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29485920/age-related-differences-in-functional-hamstring-quadriceps-ratio-following-soccer-exercise-in-female-youth-players-an-injury-risk-factor
#10
Mark De Ste Croix, Abigail Priestley, Rhodri Lloyd, Jon Oliver
PURPOSE: Fatigue negatively alters dynamic knee control, and the functional hamstring/quadriceps ratio (H/QFUNC ) plays an important role in stabilizing the joint. The aim of this study was to investigate the influence of soccer-specific exercise on H/QFUNC in under (U) 13-, U15-, and U17-year-old female soccer players. METHODS: A total of 36 female players performed concentric and eccentric actions of the hamstrings at 60°, 120°, and 180°/s before and after an age group-specific field-based soccer protocol...
February 27, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29449205/infographic-impact-of-the-nordic-hamstring-and-hip-extension-exercises-on-hamstring-architecture-and-morphology-implications-for-injury-prevention
#11
Matthew N Bourne, David Pope, Steven J Duhig, Ryan G Timmins, Morgan D Williams, Aiman Al Najjar, Graham K Kerr, Anthony J Shield
No abstract text is available yet for this article.
February 15, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29410451/non-knee-spanning-muscles-contribute-to-tibiofemoral-shear-as-well-as-valgus-and-rotational-joint-reaction-moments-during-unanticipated-sidestep-cutting
#12
Nirav Maniar, Anthony G Schache, Prasanna Sritharan, David A Opar
Anterior cruciate ligament (ACL) injuries are a burdensome condition due to potential surgical requirements and increased risk of long term debilitation. Previous studies indicate that muscle forces play an important role in the development of ligamentous loading, yet these studies have typically used cadaveric models considering only the knee-spanning quadriceps, hamstrings and gastrocnemius muscle groups. Using a musculoskeletal modelling approach, we investigated how lower-limb muscles produce and oppose key tibiofemoral reaction forces and moments during the weight acceptance phase of unanticipated sidestep cutting...
February 6, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29363495/preventing-hamstring-injuries-in-football-through-enhanced-exercise-and-rtp-strategies
#13
Nick van der Horst
No abstract text is available yet for this article.
January 23, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29353376/injury-prevention-in-baseball-from-youth-to-the-pros
#14
REVIEW
Heath P Melugin, Nels D Leafblad, Christopher L Camp, Stan Conte
PURPOSE OF REVIEW: This review examines recent literature on injury epidemiology and prevention in the sport of baseball from youth to professional levels. RECENT FINDINGS: Overuse is the predominant mechanism of injury in youth baseball players. Newer stretching and exercise protocols may help prevent these injuries. At the professional level, however, overuse has not been proven to correlate with increased injury incidence, but pitch counts are still monitored...
March 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29339983/analysis-of-the-hamstring-muscle-activation-during-two-injury-prevention-exercises
#15
Alireza Monajati, Eneko Larumbe-Zabala, Mark Goss-Sampson, Fernando Naclerio
The aim of this study was to perform an electromyographic and kinetic comparison of two commonly used hamstring eccentric strengthening exercises: Nordic Curl and Ball Leg Curl. After determining the maximum isometric voluntary contraction of the knee flexors, ten female athletes performed 3 repetitions of both the Nordic Curl and Ball Leg Curl, while knee angular displacement and electromyografic activity of the biceps femoris and semitendinosus were monitored. No significant differences were found between biceps femoris and semitendinosus activation in both the Nordic Curl and Ball Leg Curl...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29329889/exploring-individual-adaptations-to-an-anterior-cruciate-ligament-injury-prevention-programme
#16
Aaron S Fox, Jason Bonacci, Scott G McLean, Natalie Saunders
BACKGROUND: Individual responses to anterior cruciate ligament injury prevention programmes (ACL IPPs) have received little attention. This study examined the effects of an ACL IPP on neuromuscular control and lower limb biomechanics during landing at the group and individual levels. METHODS: Sixteen female athletes were randomly allocated to training (n=8) or control (n=8) groups. Electromyography, and three-dimensional kinematic and kinetic data were collected during landing at two testing sessions...
January 2018: Knee
https://www.readbyqxmd.com/read/29283933/a-preventive-model-for-muscle-injuries-a-novel-approach-based-on-learning-algorithms
#17
Alejandro López-Valenciano, Francisco Ayala, José Miguel Puerta, Mark De Ste Croix, Francisco Vera-García, Sergio Hernández-Sánchez, Iñaki Ruiz-Pérez, Gregory Myer
INTRODUCTION: The application of contemporary statistical approaches coming from Machine Learning and Data Mining environments to build more robust predictive models to identify athletes at high risk of injury might support injury prevention strategies of the future. PURPOSE: The purpose was to analyse and compare the behaviour of numerous machine learning methods in order to select the best performing injury risk factor model to identify athlete at risk of lower extremity muscle injuries (MUSINJ)...
December 28, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29212413/a-lower-extremity-strength-based-profile-of-ncaa-division-i-women-s-basketball-and-gymnastics-athletes-implications-for-knee-joint-injury-risk-assessment
#18
Brennan J Thompson, Curtis S Cazier, Eadric Bressel, Dennis G Dolny
This study aimed to provide a comprehensive strength-based physiological profile of women's NCAA Division I basketball and gymnastic athletes; and to make sport-specific comparisons for various strength characteristics of the knee flexor and extensor muscles. A focus on antagonist muscle balance (hamstrings-to-quadriceps ratios, H:Q) was used to elucidate vulnerabilities in these at-risk female athletes. Fourteen NCAA Division I women's basketball and 13 gymnastics athletes performed strength testing of the knee extensors and flexors...
August 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29164130/comparison-of-an-innovative-rehabilitation-combining-reduced-conventional-rehabilitation-with-balneotherapy-and-a-conventional-rehabilitation-after-anterior-cruciate-ligament-reconstruction-in-athletes
#19
Laetitia Peultier-Celli, Didier Mainard, Frank Wein, Nicolas Paris, Patrick Boisseau, Alexandre Ferry, René Gueguen, Isabelle Chary-Valckenaere, Jean Paysant, Philippe Perrin
Background: Instability of the knee, related to anterior cruciate ligament injury, is treated by surgical reconstruction. During recovery, a loss of proprioceptive input can have a significant impact. Few studies have evaluated the benefits of rehabilitation of the knee in aquatic environment on functional outcomes. Objective: This study aimed to compare an innovative rehabilitation protocol combining reduced conventional rehabilitation with aquatic rehabilitation, with a conventional rehabilitation, according to the National French Health Authority, in terms of kinetics, development of proprioceptive skills, and functional improvement of the knee...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/29161747/a-functional-mri-exploration-of-hamstring-activation-during-the-supine-bridge-exercise
#20
Matthew Bourne, Morgan Williams, Tania Pizzari, Anthony Shield
The single leg supine bridge (SLB) is a commonly employed strengthening exercise and is used as a clinical test for hamstring function in sports, however, little is known about the patterns of muscle activation in this task. To explore these activation patterns, nine healthy, recreationally active males underwent functional magnetic resonance imaging (fMRI) of their thighs at rest and immediately after 5 sets of 10 repetitions of the SLB exercise. Exercise-induced increases in the transverse (T2) relaxation time of the biceps femoris long and short heads, semitendinosus and semimembranosus, were determined via signal intensity changes in pre- and post-exercise images and used as an index of muscle activation...
November 21, 2017: International Journal of Sports Medicine
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